CVE-2020-25828: XSS
First published: Thu Sep 24 2020(Updated: )
An issue was discovered in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. The non-jqueryMsg version of mw.message().parse() doesn't escape HTML. This affects both message contents (which are generally safe) and the parameters (which can be based on user input). (When jqueryMsg is loaded, it correctly accepts only whitelisted tags in message contents, and escapes all parameters. Situations with an unloaded jqueryMsg are rare in practice, but can for example occur for Special:SpecialPages on a wiki with no extensions installed.)
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 | >=1.32.0<1.34.4 | |
| Wikimedia MediaWiki | =1.31.10 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://phabricator.wikimedia.org/T115888
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
- https://security-tracker.debian.org/tracker/CVE-2020-25828
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- https://lists.wikimedia.org/pipermail/mediawiki-announce
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-25828
- https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25828.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
- https://github.com/advisories/GHSA-h8qx-mj6v-2934 (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
- collector/friends-of-php
- collector/security-tracker-debian
- agent/type
- agent/first-publish-date
- agent/weakness
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-h8qx-mj6v-2934
- alias/CVE-2020-25828
- agent/software-canonical-lookup
- agent/severity
- agent/description
- agent/references
- agent/author
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- package-manager/composer
- package-manager/debian
- vendor/mediawiki
- canonical/wikimedia mediawiki
- version/wikimedia mediawiki/1.32.0
- version/wikimedia mediawiki/1.31.10
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33