01 Record
CVE-2025-53486
WikiCategoryTagCloud: Reflected Cross-Site Scripting (XSS) via linkstyle attribute in parser function
MediumPUBLISHEDCNA: wikimedia-foundation
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
02 Description
WikiCategoryTagCloud: Reflected Cross-Site Scripting (XSS) via linkstyle attribute in parser function
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.29% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 21.3% of scored records. A rank, not a probability.
- NVD base score
- 5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-07-07 15:07Z1 YR AGO
- Last updated
- 2025-07-07 19:15Z1 YR AGO
- Reserved
- 2025-06-30
- Assigning CNA
- wikimedia-foundation
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.1
- Document digest
- 01c5bbf91e4c9ae9d18214c156e5e4136d09613d7437aa30a93d0b2cd8438366
05 Affected products
VendorProductVersionsPlatforms
Wikimedia FoundationMediawiki - WikiCategoryTagCloud extension1.39.x to < 1.39.13, 1.42.x to < 1.42.7, 1.43.x to < 1.43.2—
06 References
- phabricator.wikimedia.orghttps://phabricator.wikimedia.org/T394590
- gerrit.wikimedia.orghttps://gerrit.wikimedia.org/r/q/Idd68cf2372aedd916687d30b1bd09ebb48fcfd17