CVE-2026-100238 — Flow colon-separator and flow-guidedtour-optin-welcome-description messages allow stored XSS
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS. …
Published: 2026-09-29 · CVSS: 6.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7