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Vulnerability record · CVE-2026-103437 · published 30 September 2026

CVE-2026-103437: Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia F…

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS. This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.

1.1 CVSS 4.0 Low CWE-80 · CWE-80 Awaiting Analysis
1.1CVSS 4.0 base score
-EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
30 Sep 2026Last modified by NVD

Description

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS. This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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:N/AU:Y/R:

References

LinkTags
https://gerrit.wikimedia.org/r/q/I9a724c05b2a55845007512422362e02ed8cf44b0
https://phabricator.wikimedia.org/T435863

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Source: NIST National Vulnerability Database (record CVE-2026-103437), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.