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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-3550
HistorySep 25, 2023 - 4:15 p.m.

CVE-2023-3550

2023-09-2516:15:14
Debian Security Bug Tracker
security-tracker.debian.org
7
cve-2023-3550
mediawiki
xml
file upload
vulnerability
remote attacker
administrator

CVSS3

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

AI Score

7

Confidence

High

EPSS

0.001

Percentile

46.8%

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.

CVSS3

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

AI Score

7

Confidence

High

EPSS

0.001

Percentile

46.8%