CVE-2026-96873
Reflected XSS in CirrusSearch debug explain output
- Published
- Sep 24, 2026
- Updated
- Sep 29, 2026
- Assigning CNA
- wikimedia-foundation
- Evidence observed
- Nov 4, 2026
Primary CVSS
cvelist · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:PLow · next 30 days
- Percentile
- 27.4%
- Model date
- Nov 4, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Mediawiki - CirrusSearch extension allows Reflected XSS. This issue affects Mediawiki - CirrusSearch extension through 1.46.0.
Sources
Proof-of-concept and patch verification notes for CVE-2026-96873, a reflected XSS in CirrusSearch diagnostic explain output, with a Python validation script.
Responsible use
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