CVE-2025-62656 json
GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS
published 2025-10-20 12 mo ago modified 2026-10-08 31 d ago also EUVD-2025-35105
- cvss
- 5.8
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 12 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber |
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:C/RE:L/U:Amber |
Affected products
- The Wikimedia Foundation MediaWiki GlobalBlocking extension
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2025-62656
- NVD CVE-2025-62656
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