CVE-2023-3550
Fixed in a distro release EPSS 1%CVSS 7.3
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.
Products: mediawiki
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 10 | mediawiki | 1:1.31.16-1+deb10u7 |
| Debian 11 | mediawiki | 1:1.35.13-1~deb11u1 |
| Debian 12 | mediawiki | 1:1.39.5-1~deb12u1 |
| Debian 13 | mediawiki | 1:1.39.5-1 |
| Debian 14 | mediawiki | 1:1.39.5-1 |
| Ubuntu 18.04 LTS | mediawiki | no fix |
| Ubuntu 25.10 | mediawiki | no fix |
| Ubuntu 26.04 LTS | mediawiki | no fix |
| Ubuntu 26.10 | mediawiki | no fix |
| Ubuntu Pro 20.04 LTS | mediawiki | no fix |
| Ubuntu Pro 22.04 LTS | mediawiki | no fix |
| Ubuntu Pro 24.04 LTS | mediawiki | no fix |