WP Meta SEO <= 4.5.18 - Authenticated (Contributor+) Server-Side Request Forgery via 'new_link' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The WP Meta SEO plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.5.18 via the 'new_link' parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. The HTTP response status from outbound requests is reflected back in the AJAX JSON response as status_code, providing an enumeration oracle usable for probing internal hosts and cloud metadata services.
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 |
|---|---|---|---|---|---|
| JoomUnited | WP Meta SEO | up to 4.5.18 | — | No fix listed | CNA |
- WP Meta SEO VendorJoomUnited Affected up to 4.5.18 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:joomunited:wp_meta_seo:*:*:*:*:*:*:*:* | — | — | JoomUnited |
- cpe:2.3:a:joomunited:wp_meta_seo:*:*:*:*:*:*:*:* Versions — — ·JoomUnited
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11370
- 2026-10-03 Alias added: GHSA-pcx4-v3rh-gq5x
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2a6e37c1-aaac-4642-bace-234bbc4f6c38?source=cve
- https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/inc/class.metaseo-broken-link-table.php#L1138
- https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/inc/class.metaseo-broken-link-table.php#L2013
- https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/inc/class.metaseo-admin.php#L4783
More JoomUnited vulnerabilities
- TI-2023-01305 WP Meta SEO < 4.5.5 - Author+ PHAR Deserialization CVSS 3.1HIGH 8.8
- TI-2023-00830 WP Meta SEO < 4.5.3 - Subscriber+ SQLi CVSS 3.1HIGH 8.8
- TI-2025-04513 WP File Download < 6.2.6 - Reflected XSS CVSS 3.1HIGH 7.1
- TI-2023-00831 WP Meta SEO < 4.5.3 - Subscriber+ Improper Authorization causing Arbitrary Redirect CVSS 3.1MEDIUM 6.1
- TI-2024-17009 WordPress WP Media folder Plugin <= 5.7.2 is vulnerable to Arbitrary File Upload CVSS 3.1CRITICAL 9.9
- TI-2026-08493 WordPress WP Media folder Addon plugin <= 4.0.1 - Arbitrary File Download vulnerability CVSS 3.1HIGH 7.5
Sources
- CVE-2026-11370 · CVE Program
- CVE-2026-11370 · NVD
- FIRST EPSS
- GHSA-pcx4-v3rh-gq5x · 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