CVE catalog
CVE-2020-25812
mediawiki: CVE-2020-25812
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.10% · Oct 25, 2026
An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.
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: