hCaptcha for WordPress <= 4.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via cf7-hcaptcha Shortcode
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The hCaptcha for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's cf7-hcaptcha shortcode in all versions up to, and including, 4.0.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| hcaptcha | hCaptcha for WP | up to 4.0.0 | — | No fix listed | CNA |
- hCaptcha for WP Vendorhcaptcha Affected up to 4.0.0 Fixed in — No fix listed CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wordpress_plugin:hcaptcha:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:wordpress_plugin:hcaptcha:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-4014
- 2026-10-03 Alias added: GHSA-9p92-qw4r-35fh
References
More hcaptcha vulnerabilities
- TI-2026-65676 WordPress hCaptcha for WP plugin <= 5.3.0 - Bypass Vulnerability vulnerability CVSS 3.1MEDIUM 5.3
- TI-2026-20433 WordPress hCaptcha for WP plugin <= 4.21.1 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
Sources
- CVE-2024-4014 · CVE Program
- CVE-2024-4014 · NVD
- FIRST EPSS
- GHSA-9p92-qw4r-35fh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences