mediawiki: Mediawiki v1.40.0 does not validate namespaces used in XML files
CVE-2023-3550 is fixed in mediawiki on 1 platform, first by DEBIAN-CVE-2023-3550, released September 25, 2023. It is not reported as exploited. Patch Radar priority: High.
Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mediawiki · Debian 11.6 (bullseye) | 1:1.35.13-1~deb11u1 | DSA-5520-1 | Oct 10, 2023 |
| mediawiki · Debian 12.15 (bookworm) | 1:1.39.5-1~deb12u1 | DSA-5520-1 | Oct 10, 2023 |
| mediawiki · Debian 13.5 (trixie) | 1:1.39.5-1 | DEBIAN-CVE-2023-3550 | Sep 25, 2023 |
| mediawiki · Debian 14 | 1:1.39.5-1 | DEBIAN-CVE-2023-3550 | Sep 25, 2023 |
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