[ CVE-2026-96873 · Published 24 Sep 2026 ]

Vulnerability in The Wikimedia Foundation Mediawiki - CirrusSearch Extension

CVSS 5.5 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund24 Sep 2026WID-SEC-2026-3566

MediaWiki (CirrusSearch Extension): Vulnerability allows cross-site scripting Translated from German
CVE-2026-96873

[ References ]References

[ Facts ]Key facts

CVE: CVE-2026-96873
EUVD: EUVD-2026-86230
Published: 24 Sep 2026, 16:17 UTC
Updated: 24 Sep 2026, 20:02 UTC
NVD status: Awaiting Analysis
CVSS 4.0: 5.5 Medium
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:P/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:X/AU:X/R:X/V:X/RE:X/U:X
Scored by c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
EPSS: 0.27% chance of exploitation in 30 days · higher than 18% of CVEs
CISA SSVC: Exploitation: none · Automatable: no · Impact: partial
Weakness: CWE-79

[ Affected ]Affected products

The Wikimedia Foundation Mediawiki - CirrusSearch Extension≤ 1.46.0

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

MediaWiki (CirrusSearch Extension): Vulnerability allows cross-site scripting Translated from German

[ References ]References