CVE-2026-39521: WordPress Nelio Content plugin <= 4.3.1 - Server Side Request Forgery (SSRF) vulnerability

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-08 · updated 2026-07-24
Weakness: CWE-918

Description

Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1.

Affected products

Nelio Software Nelio Content: through 4.3.1

References

https://patchstack.com/database/Wordpress/Plugin/nelio-content/vulnerability/wordpress-nelio-content-plugin-4-3-1-server-side-request-forgery-ssrf-vulnerability?_s_id=cve

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