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CVE-2023-3550

nvd nist
Published: Sep 25, 2023Modified: Jun 17, 2026

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9.0
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Exploitability: 2.3 / Impact: 6.0
Source: NVD (Secondary)

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.

Affected (3)

Mediawiki
1 product
Mediawiki
Debian
1 product
Debian Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mediawiki
Version 1.40.0
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 10.0
Debian Linux
Version 11.0

Related CWEs

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (10)

Source: help@fluidattacks.com
ExploitThird Party Advisory
Source: help@fluidattacks.com
Mailing ListThird Party Advisory
Source: help@fluidattacks.com
Source: help@fluidattacks.com
Third Party Advisory
Source: help@fluidattacks.com
Product
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Product

Timeline

No history available yet.