CVE-2026-89145
Flextype 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.
Scoring
- Severity
- LOW
- CVSS base score
- 4.2
- CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- EPSS probability
- 0.13%
- CWE
- CWE-79
- Published
- 2026-09-11
- Last modified
- 2026-09-11
Affected products
- flextype flextype
Weakness type
Related vulnerabilities
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- CVE-2026-90943 — parallax filament-comments through 3.0.0 Stored XSS via Comment Body
- CVE-2026-90561 — Strapi 4.x through 4.26.2 and 5.x before 5.48.1 Stored XSS via WYSIWYG
- CVE-2026-89256 — AVideo Bookmark Plugin Stored XSS via Chapter Names
- CVE-2026-89255 — AVideo LoginControl Stored XSS via PGP Public Key
- CVE-2026-89254 — AVideo CustomizeUser Stored XSS via field_name Parameter
- CVE-2026-89253 — AVideo Stored XSS via donationLink in watch page button
- CVE-2026-89249 — AVideo YPTWallet Stored XSS via CryptoWallet Configuration