Vulnerability · Published Jul 7, 2025 · Assigned by wikimedia-foundation
CVE-2025-53488Stored XSS in WikiHiero
Medium 6.1
In plain English
A medium-severity cross-site scripting in Mediawiki - WikiHiero Extension from Wikimedia Foundation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 87.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Wikimedia Foundation | Mediawiki - WikiHiero Extension | 1.43.x – before 1.43.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N