Description
An issue was discovered in SubmitEntityAction in Wikibase in MediaWiki through 1.39.3. Because it doesn't use EditEntity for undo and restore, the intended interaction with AbuseFilter does not occur.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mediawiki | No fix yet | — |
| Ubuntu 26.04 LTS | mediawiki | No fix yet | — |
| Ubuntu 25.10 | mediawiki | No fix yet | — |
| Ubuntu 18.04 LTS | mediawiki | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | mediawiki | No fix yet | — |
| Ubuntu Pro 22.04 LTS | mediawiki | No fix yet | — |
| Ubuntu Pro 20.04 LTS | mediawiki | No fix yet | — |
Advisories 2
- WID-SEC-2023-1695 MediaWiki: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 13, 2026
- WID-SEC-2023-1684 MediaWiki: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 6, 2023