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.
Published 2023-09-25 16:15:14
Updated 2025-02-13 17:16:57
Source Fluid Attacks
View at NVD,   CVE.org

Products affected by CVE-2023-3550

Exploit prediction scoring system (EPSS) score for CVE-2023-3550

0.08%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-3550

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.3
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
2.1
5.2
Fluid Attacks
9.0
CRITICAL CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
2.3
6.0
NIST

CWE ids for CVE-2023-3550

References for CVE-2023-3550

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