CVE catalog
CVE-2020-25828
mediawiki: CVE-2020-25828
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.09% · Oct 25, 2026
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.)
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mediawiki | sid | 1:1.43.11+dfsg-3 | fixed |
| Debian | mediawiki | forky | 1:1.43.11+dfsg-1 | fixed |
| Debian | mediawiki | trixie | 1:1.43.9+dfsg-1~deb13u1 | fixed |
| Debian | mediawiki | trixie-security | 1:1.43.9+dfsg-1~deb13u1 | fixed |
| Debian | mediawiki | bookworm | 1:1.39.17-1+deb12u2 | fixed |
| Debian | mediawiki | bookworm-security | 1:1.39.17-1+deb12u2 | fixed |
| Ubuntu | mediawiki | 18.04 | 1:1.27.3-1 | vulnerable |
| Ubuntu | mediawiki | 18.04 | 1:1.27.4-1 | vulnerable |
| Ubuntu | mediawiki | 18.04 | 1:1.27.4-2 | vulnerable |
| Ubuntu | mediawiki | 18.04 | 1:1.27.4-3 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.2-1ubuntu1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.5-1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.5-1ubuntu1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.5-2 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.5-3 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.5-3ubuntu1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.6-1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.7-1 | vulnerable |
| Ubuntu | mediawiki | pro | 1:1.31.7-1ubuntu0.1~esm1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mediawiki | source | sid | 1:1.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | mediawiki | source | forky | 1:1.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | mediawiki | source | trixie | 1:1.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | mediawiki | source | bookworm | 1:1.35.0-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [mediawiki]Unknown
Details (4)
1:1.39.17-1+deb12u2· all · bookwormFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookwormFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookworm-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookworm-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- [mediawiki-classes]Unknown
Source package: [mediawiki]
Details (4)
1:1.39.17-1+deb12u2· all · bookwormFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookwormFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookworm-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
1:1.39.17-1+deb12u2· all · bookworm-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
[Debian 13 (Trixie)]
- [mediawiki]Unknown
Details (4)
1:1.43.9+dfsg-1~deb13u1· all · trixieFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixieFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixie-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixie-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
- [mediawiki-classes]Unknown
Source package: [mediawiki]
Details (4)
1:1.43.9+dfsg-1~deb13u1· all · trixieFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixieFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixie-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
1:1.43.9+dfsg-1~deb13u1· all · trixie-securityFixed · Fixed:
1:1.35.0-1dsa · mediawiki · debian · 13
Observed: