opajaap WP Photo Album Plus Plugin up to 9.2.08.003 on WordPress wp_ajax_nopriv_wppa Endpoint getshortcodedrenderedfenodelay HTTP_X_FORWARDED_FOR cross site scripting

Summaryinfo

A vulnerability was found in opajaap WP Photo Album Plus Plugin up to 9.2.08.003. It has been declared as problematic. This affects the function getshortcodedrenderedfenodelay of the component wp_ajax_nopriv_wppa Endpoint. Such manipulation of the argument HTTP_X_FORWARDED_FOR leads to cross site scripting. This vulnerability is listed as CVE-2026-18579. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in opajaap WP Photo Album Plus Plugin up to 9.2.08.003. Affected by this issue is the function getshortcodedrenderedfenodelay of the component wp_ajax_nopriv_wppa Endpoint. The manipulation of the argument HTTP_X_FORWARDED_FOR with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

The WP Photo Album Plus plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_X_FORWARDED_FOR' parameter in all versions up to, and including, 9.2.08.003 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The nonce failure path for the getshortcodedrenderedfenodelay action serves as the log-write trigger rather than an access barrier — a deliberately failed nonce check causes wppa_log() to record the attacker-supplied X-Forwarded-For value to disk, making the exploit fully reachable by unauthenticated callers via the wp_ajax_nopriv_wppa endpoint.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-18579 since 08/02/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• opajaap

Name

• WP Photo Album Plus Plugin

Version

• 9.2.08.003

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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