WP Meta SEO <= 4.5.18 - Authenticated (Contributor+) Server-Side Request Forgery via 'new_link' Parameter

6.4
Server-Side Request Forgery (SSRF)
CVE CVE-2026-11370
CVSS 6.4 (Medium)
Publicly Published June 23, 2026
Last Updated June 24, 2026
Researcher Enes Ismail - Enes

Description

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.

References

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Vulnerability Details for WP Meta SEO

Software Type Plugin
Software Slug wp-meta-seo (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 4.5.18

Recent vulnerabilities in WP Meta SEO

# Title CVE ID CVSS Researchers Date
1 WP Meta SEO <= 4.5.18 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI in 404 Logging CVE-2026-9643 7.2 zedeq June 23, 2026
2 WP Meta SEO <= 4.5.13 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-45456 6.4 Robert DeVore September 12, 2024
3 WP Meta SEO <= 4.5.13 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2024-45455 4.4 Robert DeVore September 12, 2024
4 WP Meta SEO <= 4.5.12 - Unauthenticated Stored Cross-Site Scripting via Referer header CVE-2023-6961 7.2 Krzysztof Zając April 16, 2024
5 WP Meta SEO <= 4.5.12 - Information Exposure via Meta Description CVE-2023-6962 5.3 Krzysztof Zając April 16, 2024
6 WP Meta SEO <= 4.5.4 - Authenticated (Author+) PHAR Deserialization CVE-2023-1381 8.8 Alex Sanford March 27, 2023
7 WP Meta SEO <= 4.5.3 - Missing Authorization in 'wpmsGGSaveInformation' CVE-2023-1022 5.4 Marco Wotschka February 24, 2023
8 WP Meta SEO <= 4.5.3 - Missing Authorization in 'saveSitemapSettings' CVE-2023-1023 5.4 Marco Wotschka February 24, 2023
9 WP Meta SEO <= 4.5.3 - Missing Authorization in 'listPostsCategory' CVE-2023-1026 4.3 Marco Wotschka February 24, 2023
10 WP Meta SEO <= 4.5.3 - Cross-Site Request Forgery via 'setIgnore' CVE-2023-1028 4.3 Marco Wotschka February 24, 2023

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