[ CVE-2026-113667 · Published 20 Oct 2026 ]
ApostropheCMS: CAPTCHA response token not URL-encoded
CVSS 5.3
EPSS <1%Fix available
[ Description ]Official description
ApostropheCMS is an open-source Node.js content management system. Prior to 1.5.5 of the Form add-on, 1.2.1 of login-recaptcha, and 1.3.0 of login-hcaptcha, these three CAPTCHA integrations interpolate an unencoded user-supplied response token into the provider verification request. Crafted tokens can smuggle request parameters and disrupt CAPTCHA verification and CAPTCHA-gated form or login flows; automated bypass probing is possible, but a successful CAPTCHA bypass or secret disclosure is not established. This issue is fixed in Form 1.5.5, login-recaptcha 1.2.1, and login-hcaptcha 1.3.0.
[ Fixes ]Fixes and patches
- @apostrophecms/form 1.5.5Fixed version · GitHub Advisories · npm package @apostrophecms/form: upgrade to 1.5.5 or later (affected < 1.5.5)
- @apostrophecms/login-recaptcha 1.2.1Fixed version · GitHub Advisories · npm package @apostrophecms/login-recaptcha: upgrade to 1.2.1 or later (affected < 1.2.1)
- @apostrophecms/login-hcaptcha 1.3.0Fixed version · GitHub Advisories · npm package @apostrophecms/login-hcaptcha: upgrade to 1.3.0 or later (affected < 1.3.0)
[ Packages ]Affected open-source packages
- @apostrophecms/form npmAffected < 1.5.5 · fixed in 1.5.5 · GHSA-44qr-rrjg-2cqq
- @apostrophecms/login-recaptcha npmAffected < 1.2.1 · fixed in 1.2.1 · GHSA-44qr-rrjg-2cqq
- @apostrophecms/login-hcaptcha npmAffected < 1.3.0 · fixed in 1.3.0 · GHSA-44qr-rrjg-2cqq
[ References ]References
- github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
- github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
- github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/form@1.5.5
- github.com/apostrophecms/apostrophe/security/advisories/GHSA-44qr-rrjg-2cqq