bbPress <= 2.6.11 - Cross-Site Request Forgery to Limited Privilege Escalation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
The bbPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.6.11. This is due to missing or incorrect nonce validation on the bbp_user_add_role_on_register() function. This makes it possible for unauthenticated attackers to elevate their privileges to that of a bbPress Keymaster via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Rather than implementing a nonce check to provide protection against this vulnerability, which would break functionality, the plugin no longer makes it possible to select a role during registration.
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 |
|---|---|---|---|---|---|
| John James Jacoby | bbPress | up to 2.6.11 | — | No fix listed | CNA |
- bbPress VendorJohn James Jacoby Affected up to 2.6.11 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1435
- 2026-10-03 Alias added: GHSA-3frh-5xx6-qrgx
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2d776d94-8c81-4e88-bae3-946824a75c09?source=cve
- https://plugins.trac.wordpress.org/browser/bbpress/trunk/includes/users/signups.php#L151
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3247345%40bbpress&new=3247345%40bbpress&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset/3247345/bbpress/branches/2.6/includes/users/capabilities.php
More John James Jacoby vulnerabilities
- TI-2026-68301 Privilege escalation in WordPress WP User Profiles plugin CVSS 3.1HIGH 8.8
- TI-2025-22687 WordPress WP User Profiles plugin <= 2.6.2 - Privilege Escalation vulnerability CVSS 3.1HIGH 8.8
- TI-2026-52000 WordPress bbPress plugin <= 2.6.14 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2026-44396 WordPress bbPress plugin <= 2.6.14 - Sensitive Data Exposure vulnerability CVSS 3.1MEDIUM 5.3
- TI-2025-04100 A/B Testing for WordPress <= 1.18.2 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
- TI-2025-11493 Post Type Switcher <= 4.0.0 - Insecure Direct Object Reference to Authenticated (Author+) Post Type Change CVSS 3.1MEDIUM 5.4
Sources
- CVE-2025-1435 · CVE Program
- CVE-2025-1435 · NVD
- FIRST EPSS
- GHSA-3frh-5xx6-qrgx · 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