Missing authorization in aioseo Broken Link Checker by AIOSEO – Easily Fix/Monitor…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links plugin for WordPress is vulnerable to unauthorized post modification due to missing authorization in all versions up to, and including, 1.2.5. This is due to the plugin registering a REST API endpoint that only checks for a broad capability (aioseo_blc_broken_links_page) that is granted to contributor level users, without verifying the user's permission to perform actions on the specific post being targeted. This makes it possible for authenticated attackers, with contributor level access and above, to trash arbitrary posts via the DELETE /wp-json/aioseoBrokenLinkChecker/v1/post endpoint.
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 |
|---|---|---|---|---|---|
| aioseo | Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links | up to 1.2.5 | — | No fix listed | CNA |
- Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links Vendoraioseo Affected up to 1.2.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11734
- 2026-10-03 Alias added: GHSA-xhwv-738r-4942
References
More aioseo vulnerabilities
- TI-2021-06599 All in One SEO Pack < 4.1.0.2 - Admin RCE via unserialize CVSS 3.1HIGH 8.8
- TI-2024-03152 All in One SEO < 4.6.1.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.1
- TI-2021-07314 All In One SEO < 4.1.5.3 - Authenticated Privilege Escalation CVSS 3.1HIGH 8.8
- TI-2022-17802 WordPress All in One SEO plugin <= 4.2.3.1 - Multiple Cross-Site Request Forgery (CSRF) vulnerabilities CVSS 3.1HIGH 8.8
- TI-2023-00555 All in One SEO Pack <= 4.2.9 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
- TI-2021-07315 All In One SEO < 4.1.5.3 - Authenticated SQL Injection CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-11734 · CVE Program
- CVE-2025-11734 · NVD
- FIRST EPSS
- GHSA-xhwv-738r-4942 · 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