Fluid Attacks Database

Description

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 14	mediawiki	>=0 <1:1.39.5-1	1:1.39.5-1
debian 12	mediawiki	=1:1.39.2-1 \|\| =1:1.39.4-1 \|\| =1:1.39.4-1~deb12u1 \|\| =1:1.39.4-2 \|\| >=0 <1:1.39.5-1~deb12u1	1:1.39.5-1~deb12u1
debian 13	mediawiki	>=0 <1:1.39.5-1	1:1.39.5-1

Aliases

1. CVE-2023-35502. NVD-2023-35503. OSV-DEBIAN-2023-35504. OSV-2023-35505. SECURITY-TRACKER-CVE-2023-3550

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