mirror of
https://github.com/mermaid-js/mermaid.git
synced 2025-09-10 02:49:40 +02:00
State diagram sanitization
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@@ -68,5 +68,10 @@ describe('XSS', () => {
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cy.wait(1000);
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cy.wait(1000);
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cy.get('#the-malware').should('not.exist');
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cy.get('#the-malware').should('not.exist');
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})
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})
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it('should not allow maniplulating antiscript to run javascript using onerror in state diagrams', () => {
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cy.visit('http://localhost:9000/xss7.html');
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cy.wait(1000);
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cy.get('#the-malware').should('not.exist');
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})
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})
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})
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99
cypress/platform/xss7.html
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99
cypress/platform/xss7.html
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@@ -0,0 +1,99 @@
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<html>
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<head>
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<link
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href="https://fonts.googleapis.com/css?family=Montserrat&display=swap"
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rel="stylesheet"
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/>
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<link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet">
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
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<link href="https://fonts.googleapis.com/css?family=Noto+Sans+SC&display=swap" rel="stylesheet">
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<style>
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body {
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/* background: rgb(221, 208, 208); */
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/* background:#333; */
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font-family: 'Arial';
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/* font-size: 18px !important; */
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}
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h1 { color: grey;}
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.mermaid2 {
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display: none;
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}
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.mermaid svg {
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/* font-size: 18px !important; */
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}
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.malware {
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position: fixed;
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bottom:0;
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left:0;
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right:0;
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height: 150px;
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background: red;
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color: black;
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display: flex;
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display: flex;
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justify-content: center;
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align-items: center;
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font-family: monospace;
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font-size: 72px;
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}
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</style>
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</head>
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<body>
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<div>Security check</div>
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<div class="flex">
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<div id="diagram" class="mermaid"></div>
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<div id="res" class=""></div>
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<script src="./mermaid.js"></script>
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<script>
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mermaid.parseError = function (err, hash) {
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// console.error('Mermaid error: ', err);
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};
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mermaid.initialize({
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theme: 'forest',
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arrowMarkerAbsolute: true,
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// themeCSS: '.edgePath .path {stroke: red;} .arrowheadPath {fill: red;}',
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logLevel: 0,
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state: {
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defaultRenderer: 'dagre-d3',
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},
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flowchart: {
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// defaultRenderer: 'dagre-wrapper',
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nodeSpacing: 10, curve: 'cardinal', htmlLabels: true
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},
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htmlLabels: true,
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// gantt: { axisFormat: '%m/%d/%Y' },
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sequence: { actorFontFamily: 'courier',actorMargin: 50, showSequenceNumbers: false },
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// sequenceDiagram: { actorMargin: 300 } // deprecated
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// fontFamily: '"times", sans-serif',
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// fontFamily: 'courier',
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fontSize: 18,
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curve: 'basis',
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startOnLoad: false,
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secure: ['secure', 'securityLevel', 'startOnLoad', 'maxTextSize'],
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securityLevel: 'loose',
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// themeVariables: {relationLabelColor: 'red'}
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});
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function callback(){alert('It worked');}
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function xssAttack(){
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const div = document.createElement('div')
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div.id = 'the-malware'
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div.className = 'malware'
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div.innerHTML = 'XSS Succeeded'
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document.getElementsByTagName('body')[0].appendChild(div);
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throw new Error('XSS Succeded');
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}
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var diagram = "stateDiagram-v2\n";
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diagram += "<img/src='1'/onerror=xssAttack()> --> B";
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// diagram += "script\u003aalert\u0028document.domain\u0029\` src=x>\"\);\n";
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console.log(diagram);
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// document.querySelector('#diagram').innerHTML = diagram;
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mermaid.render('diagram', diagram, (res) => {
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console.log(res);
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document.querySelector('#res').innerHTML = res;
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});
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</script>
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</body>
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</html>
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@@ -1,10 +1,10 @@
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import { log } from '../../logger';
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import { log } from '../../logger';
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import { generateId } from '../../utils';
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import { generateId } from '../../utils';
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import mermaidAPI from '../../mermaidAPI';
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import mermaidAPI from '../../mermaidAPI';
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import common from '../common/common';
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import * as configApi from '../../config';
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import * as configApi from '../../config';
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const clone = (o) => JSON.parse(JSON.stringify(o));
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const clone = (o) => JSON.parse(JSON.stringify(o));
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let rootDoc = [];
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let rootDoc = [];
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export const parseDirective = function (statement, context, type) {
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export const parseDirective = function (statement, context, type) {
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@@ -148,7 +148,7 @@ export const addState = function (id, type, doc, descr, note) {
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}
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}
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}
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}
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if (note) currentDocument.states[id].note = note;
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if (note) currentDocument.states[id].note = common.sanitizeText(note, configApi.getConfig());
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};
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};
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export const clear = function () {
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export const clear = function () {
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@@ -195,7 +195,7 @@ export const addRelation = function (_id1, _id2, title) {
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}
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}
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addState(id1, type1);
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addState(id1, type1);
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addState(id2, type2);
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addState(id2, type2);
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currentDocument.relations.push({ id1, id2, title: title });
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currentDocument.relations.push({ id1, id2, title: common.sanitizeText(title, configApi.getConfig()) });
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};
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};
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const addDescription = function (id, _descr) {
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const addDescription = function (id, _descr) {
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@@ -204,8 +204,7 @@ const addDescription = function (id, _descr) {
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if (descr[0] === ':') {
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if (descr[0] === ':') {
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descr = descr.substr(1).trim();
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descr = descr.substr(1).trim();
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}
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}
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theState.descriptions.push(common.sanitizeText(descr, config));
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theState.descriptions.push(descr);
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};
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};
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export const cleanupLabel = function (label) {
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export const cleanupLabel = function (label) {
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@@ -7,6 +7,7 @@ import { getConfig } from '../../config';
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import { render } from '../../dagre-wrapper/index.js';
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import { render } from '../../dagre-wrapper/index.js';
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import { log } from '../../logger';
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import { log } from '../../logger';
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import { configureSvgSize } from '../../utils';
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import { configureSvgSize } from '../../utils';
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import common from '../common/common';
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const conf = {};
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const conf = {};
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export const setConf = function (cnf) {
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export const setConf = function (cnf) {
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@@ -15,6 +16,7 @@ export const setConf = function (cnf) {
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conf[keys[i]] = cnf[keys[i]];
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conf[keys[i]] = cnf[keys[i]];
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}
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}
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};
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};
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let mainConfig = getConfig();
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let nodeDb = {};
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let nodeDb = {};
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@@ -51,7 +53,7 @@ const setupNode = (g, parent, node, altFlag) => {
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nodeDb[node.id] = {
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nodeDb[node.id] = {
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id: node.id,
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id: node.id,
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shape,
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shape,
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description: node.id,
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description: common.sanitizeText(node.id, getConfig()),
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classes: 'statediagram-state',
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classes: 'statediagram-state',
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};
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};
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}
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}
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