CVE Catalog

CVE-2026-100238

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

8th percentile - higher than 8% of all known CVEs

Summary

Stored XSS vulnerability in the Flow extension for MediaWiki due to improper input neutralization during web page generation. Affects versions before 1.46.1, 1.45.5, and 1.43.10.

Risk Assessment

An attacker can inject malicious scripts that execute in other users' browsers, potentially leading to session theft or account takeover.

Recommendation

Update the Flow extension to version 1.46.1, 1.45.5, 1.43.10 or later to remediate the vulnerability.

Related vulnerabilities

Original NVD description (English source)

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS. This issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS