Description
thumb.php in MediaWiki before 1.15.2, when used with access-restriction mechanisms such as img_auth.php, does not check user permissions before providing scaled images, which allows remote attackers to bypass intended access restrictions and read private images via unspecified manipulations.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mediawiki | 1:1.15.2-1 | — |
| Debian 13 | mediawiki | 1:1.15.2-1 | — |
| Debian 12 | mediawiki | 1:1.15.2-1 | — |
| Debian 5.0 | mediawiki | 1:1.12.0-2lenny4 | DSA-2022-1 |
Advisories 1
- DSA-2022-1 mediawiki - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://svn.wikimedia.org/svnroot/mediawiki/tags/REL1_15_2/phase3/RELEASE-NOTES
- 39656 third-party-advisory
- DSA-2022 vendor-advisory
- [MediaWiki-announce] 20100303 MediaWiki security update: 1.15.2 mailing-list
- SUSE-SR:2010:010 vendor-advisory
- ADV-2010-0685 vdb-entry
- 39022 third-party-advisory
- ADV-2010-1001 vdb-entry