Security fix · CVE-2026-113667
ApostropheCMS is an open-source Node.js content management system.
Published Oct 20, 2026 · catalog updated Oct 21, 2026 · ApostropheCMS is an open-source
Last checked Nov 6, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-113667. EPSS is 0.37%. Act only if a listed version of ApostropheCMS is an open-source is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (ApostropheCMS is an open-source).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.37%
- Remediation
- Advisory link
- Affected products
- npm @apostrophecms/form · npm @apostrophecms/login-hcaptcha · npm @apostrophecms/login-recaptcha · package npm
**Summary** Form and login CAPTCHA verification interpolate the user-supplied widget token unencoded into the server-side verification URL/body, allowing a crafted token to inject query parameters into the reCAPTCHA/hCaptcha verify request. **Details** - — - — same pattern for login - — **PoC** **Impact** Low: a crafted token smuggles extra pairs ( , extra ) into the outbound verify call, forcing verification failures (DoS of the captcha gate and of captcha-gated login/form flows) and enabling automated bypass probing; no secret exfiltration. **Remediation** — Build the verify request with + (or on both and ), and validate the token against before use.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- npm @apostrophecms/form0 → 1.5.5
- npm @apostrophecms/login-hcaptcha0 → 1.3.0
- npm @apostrophecms/login-recaptcha0 → 1.2.1
- package npmversion unspecified
How to fix CVE-2026-113667
Upgrade
CVE-2026-113667 lists a fix boundary at 1.5.5. Compare the installed build with that boundary before you change production.
Version check
Fixed in 1.5.5 · 2 other ranges on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-113667. EPSS is 0.37%. Act only if a listed version of ApostropheCMS is an open-source is installed.
Which versions are affected?
Compare what you have installed with 0 → 1.5.5, 0 → 1.3.0, 0 → 1.2.1. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-116. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 20, 2026 · GitHub Advisory Database
Fix available
@apostrophecms/form fixed in 1.5.5; @apostrophecms/login-recaptcha fixed in 1.2.1; @apostrophecms/login-hcaptcha fixed in 1.3.0
Oct 20, 2026 · NIST NVD
Detected
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
Oct 20, 2026 · GitHub Advisory Database
Fix available
@apostrophecms/form fixed in 1.5.5
Oct 20, 2026 · GitHub Advisory Database
Fix available
@apostrophecms/login-recaptcha fixed in 1.2.1
Oct 20, 2026 · GitHub Advisory Database
Fix available
@apostrophecms/login-hcaptcha fixed in 1.3.0
Oct 21, 2026 · NIST NVD
Updated
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
Sources
- CVE.orgVulnerability recordCVE-2026-113667
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-113667
30-day exploitation probability 0.37%
first.org - GitHub Advisory DatabasePackage advisoryGHSA-44qr-rrjg-2cqq
GitHub Advisory Database record mirrored by OSV.
github.com - NIST NVDVulnerability recordCVE-2026-113667
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 reque
nvd.nist.gov - OpenSSF OSV / OSV ScannerPackage advisoryGHSA-44qr-rrjg-2cqq
ApostropheCMS: CAPTCHA response token not URL-encoded
osv.dev - Snyk Vulnerability DatabasePackage advisorySNYK-JS-APOSTROPHECMSFORM-21691384
Improper Encoding or Escaping of Output
security.snyk.io - Snyk Vulnerability DatabasePackage advisorySNYK-JS-APOSTROPHECMSLOGINHCAPTCHA-21691382
Improper Encoding or Escaping of Output
security.snyk.io - Snyk Vulnerability DatabasePackage advisorySNYK-JS-APOSTROPHECMSLOGINRECAPTCHA-21691383
Improper Encoding or Escaping of Output
security.snyk.io
References
Freshness
Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 6, 2026
- Snyk Vulnerability DatabaseOct 26, 2026
- Snyk Vulnerability DatabaseOct 26, 2026
- Snyk Vulnerability DatabaseOct 26, 2026
- CVE.orgOct 21, 2026
- NIST NVDOct 21, 2026
- GitHub Advisory DatabaseOct 20, 2026
- OpenSSF OSV / OSV ScannerOct 20, 2026