What is the CVSS score of CVE-2026-2290?

CVE-2026-2290 has a CVSS 3.1 base score of 3.8 (Low). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Post Affiliate Pro are affected by CVE-2026-2290?

Organizations using for WordPress is vulnerable to Server-Side Request Forgery in all should be aware of notable risk from CVE-2026-2290, a server-side request forgery vulnerability rated CVSS 6.5.

How to fix or mitigate CVE-2026-2290?

Within 30 days: Identify affected systems running for WordPress is vulnerable to Server-Side Request Forgery i and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Post Affiliate Pro CVE-2026-2290

EUVD-2026-13997 LOW

Server-Side Request Forgery (SSRF) (CWE-918)

2026-03-21 Wordfence

GHSA-fhxr-xhmq-xjw7

WordPress SSRF Post Affiliate Pro Wordpress Plugin

3.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

3.8 LOW

AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 21, 2026 - 04:00 euvd

EUVD-2026-13997

Analysis Generated

Mar 21, 2026 - 04:00 vuln.today

CVE Published

Mar 21, 2026 - 03:26 nvd

LOW 3.8

DescriptionCVE.org

The Post Affiliate Pro plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.28.0. This makes it possible for authenticated attackers, with Administrator-level access, to make web requests to initiate arbitrary outbound requests from the application and read the returned response content. Successful exploitation was confirmed by receiving and observing response data from an external Collaborator endpoint.

AnalysisAI

The Post Affiliate Pro WordPress plugin versions up to 1.28.0 contain a Server-Side Request Forgery (SSRF) vulnerability that allows authenticated administrators to make arbitrary outbound web requests from the affected server and read response content. An attacker with administrator-level access can exploit this to interact with internal services, exfiltrate data, or pivot to other systems. Wordfence has confirmed exploitation via external Collaborator endpoints, and the CVSS 6.5 score reflects moderate severity with low attack complexity.

Technical ContextAI

The vulnerability exists in the Base.class.php file (line 127) of the Post Affiliate Pro plugin (CPE: cpe:2.3:a:jurajsim:post_affiliate_pro:*:*:*:*:*:*:*:*), which fails to properly validate or sanitize user-supplied input used in HTTP requests. This is a classic Server-Side Request Forgery (CWE-918) vulnerability where the application constructs outbound requests based on attacker-controlled parameters without adequate filtering. The WordPress plugin architecture compounds this issue, as the vulnerable code executes within the PHP context of the WordPress application, giving it the same network access and system privileges as the web server process.

RemediationAI

Update the Post Affiliate Pro plugin to a version newer than 1.28.0 immediately. Verify the patched version is available from the plugin developer or through the WordPress plugin repository. Until patching is completed, restrict administrator account access to trusted personnel only, disable the plugin if not actively used, and implement network-level egress filtering to prevent the server from making unexpected outbound connections to arbitrary hosts. Monitor outbound HTTP/HTTPS connections from the web server for suspicious patterns. Review administrator account activity logs for any unauthorized requests or anomalous behavior.