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CVE-2026-113667

ApostropheCMS: CAPTCHA response token not URL-encoded

CVSS score

5.3

EPSS probability

—

Risk score

0.5

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

DayBreach AI Explanation

Verified against sources

ApostropheCMS CAPTCHA Integration URL Encoding Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

CAPTCHA integrations within ApostropheCMS suffer from a vulnerability where user-supplied response tokens are interpolated unencoded into the provider verification request.

Why does it matter?

This flaw allows attackers to smuggle request parameters and disrupt CAPTCHA-gated form or login flows, enabling automated bypass probing.

What should be done?

  • Update the Form add-on to version 1.5.5 or later
  • Update login-recaptcha to version 1.2.1 or later
  • Update login-hcaptcha to version 1.3.0 or later
Chain of evidence and sources2 verified claims

ApostropheCMS CAPTCHA entegrasyonları, kullanıcı girdisi yanıt belirteçlerini URL kodlaması yapmadan doğrulama isteğine eklemektedir.

S0 · daybreach-canonicalS1 · cvelist

Hazırlanan belirteçler istek parametrelerinin sızdırılmasına ve CAPTCHA korumalı akışların bozulmasına neden olabilir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CWE: CWE-116

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-113667 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1apostrophecmsapostrophe View
2apostrophecmsform View
3apostrophecmslogin-hcaptcha View
4apostrophecmslogin-recaptcha View
5npm@apostrophecms/form View
6npm@apostrophecms/login-recaptcha View
7npm@apostrophecms/login-hcaptcha View
Total affected vendors: 2|Products: 7

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.3CVSS V4_0MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NCVE CNA
5.3CVSS V40MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD
5.3CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-113667 is associated with the following CWEs:

CWE-116: Common Weakness Enumeration Entry CWE-116

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-113667 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-44qr-rrjg-2cqqvendor-advisoryhttps://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845cevendor-advisoryhttps://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350vendor-advisoryhttps://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/form@1.5.5vendor-advisoryhttps://github.com/advisories/GHSA-44qr-rrjg-2cqqvendor-advisory

CVSS Vector Radar Chart

5.3 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

A
apostrophecms logo
apostrophecms
N
npm logo
npm

Weakness Type (CWE & CAPEC)

CWE-116

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CVE-2026-113667 · ApostropheCMS: CAPTCHA response token not…