CVE-2026-89145
Flextype CMS 0.9.9 through 1.0.0-alpha.3 Stored XSS via Plugin Directory
CVSS 4.0 2.4 LOWCVSS 3.1 4.2 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-89145
PublishedFlextype CMS versions 0.9.9 through 1.0.0-alpha.3 fail to HTML-escape plugin directory names in the dependency error page rendered by getValidPluginsDependencies(). Attackers with write access to the plugins directory can create a plugin with HTML characters in its name to execute arbitrary scripts in users' browsers when dependency validation fails.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-89145 · CVE overview and exploitation status
cve-program · CVE-2026-89145
- https://github.com/flextype/flextype/issues/597
- https://github.com/flextype/flextype
- https://github.com/flextype/flextype/blob/aea4ead8c449ea5517ed53b6dcbd28b0a528ad9d/src/flextype/core/Plugins.php#L345
- https://www.vulncheck.com/advisories/flextype-cms-0.9.9-through-1.0.0-alpha.3-stored-xss-via-plugin-directory
Related changes
Linked by CVE identifierNo related changes are available here.