CVE-2023-45372

Name: CVE-2023-45372
Creator: NVD / NIST
Published: 2023-10-09T06:15:10.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2023-45372 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in the Wikibase extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. During item merging, ItemMergeInteractor does not have an edit filter running (e.g., AbuseFilter).. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Wikibase extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. During item merging, ItemMergeInteractor does not have an edit filter running (e.g., AbuseFilter).

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.34%

26.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.35.12
Mediawiki	Mediawiki	>= 1.36.0, < 1.39.5
Mediawiki	Mediawiki	1.40.0

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/961264Issue Tracking, Vendor Advisory
https://phabricator.wikimedia.org/T345064Issue Tracking, Permissions Required
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/961264Issue Tracking, Vendor Advisory
https://phabricator.wikimedia.org/T345064Issue Tracking, Permissions Required

Timeline

Published: Oct 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45372?

How severe is CVE-2023-45372?

CVE-2023-45372 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45372?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45372?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST