CVE-2025-53500 — MEDIUM (5.6)

Q: How severe is CVE-2025-53500?

CVE-2025-53500 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-53500?

Check the references section above for vendor advisories and patch information. Affected products include: Malvineous Masseditregex, Mediawiki Mediawiki.

Vulnerability Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

CVSS Score

5.6

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Malvineous	Masseditregex	-
Mediawiki	Mediawiki	>= 1.39.0, < 1.39.12

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassEditRegex/+/1163878/Patch
https://phabricator.wikimedia.org/T397334ExploitIssue TrackingPatch

FAQ

What is CVE-2025-53500?

CVE-2025-53500 is a vulnerability with a CVSS score of 5.6 (MEDIUM). Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affec...

How severe is CVE-2025-53500?

CVE-2025-53500 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-53500?

Check the references section above for vendor advisories and patch information. Affected products include: Malvineous Masseditregex, Mediawiki Mediawiki.