CVE-2020-25814: XSS
First published: Thu Sep 24 2020(Updated: )
In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/mediawiki/core | >=1.31.0<1.31.9>=1.34.0<1.34.3>=1.34.99<1.35.0 | |
| debian/mediawiki | 1:1.31.16-1+deb10u2 1:1.31.16-1+deb10u6 1:1.35.11-1~deb11u1 1:1.35.13-1~deb11u1 1:1.39.4-1~deb12u1 1:1.39.5-1~deb12u1 1:1.39.5-1 | |
| composer/mediawiki/core | >=1.35.0-rc.0<1.35.0 | 1.35.0 |
| composer/mediawiki/core | >=1.32.0<1.34.3 | 1.34.3 |
| composer/mediawiki/core | >=1.31.0<1.31.9 | 1.31.9 |
| Wikimedia MediaWiki | <1.31.10 | |
| Wikimedia MediaWiki | >=1.32.0<1.34.4 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://phabricator.wikimedia.org/T86738
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
- https://security-tracker.debian.org/tracker/CVE-2020-25814
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
- https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediawiki.jqueryMsg
- https://nvd.nist.gov/vuln/detail/CVE-2020-25814
- https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25814.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
- https://github.com/advisories/GHSA-4vr7-m8p8-434h (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
Frequently Asked Questions
What is the severity of CVE-2020-25814?
CVE-2020-25814 has a medium severity rating due to its ability to enable XSS attacks via jQuery.
How do I fix CVE-2020-25814?
To fix CVE-2020-25814, upgrade MediaWiki to version 1.31.10, 1.34.4, or later versions.
Which versions of MediaWiki are affected by CVE-2020-25814?
CVE-2020-25814 affects MediaWiki versions before 1.31.10 and between 1.32.x and 1.34.x prior to 1.34.4.
What type of vulnerability is CVE-2020-25814?
CVE-2020-25814 is an XSS (Cross-Site Scripting) vulnerability related to jQuery parsing.
What impact does CVE-2020-25814 have on users?
CVE-2020-25814 allows attackers to inject malicious scripts into user-facing pages, potentially leading to unauthorized actions on behalf of users.
- collector/friends-of-php
- collector/security-tracker-debian
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