WordPress wpForo Forum plugin <= 2.4.16 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Forum Post Modification via 'guestposting' Parameter vulnerability

Missing Authorization to Authenticated Subscriber+ Arbitrary Forum Post Modification via 'guestposting' Parameter vulnerability discovered by Jared Reyes in WordPress Plugin wpForo Forum versions = 2.4.16...

CVE-2026-4666 wpForo Forum <= 2.4.16 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Forum Post Modification via 'guestposting' Parameter

The wpForo Forum plugin for WordPress is vulnerable to unauthorized modification of data due to the use of extract$args, EXTROVERWRITE on user-controlled input in the edit method of classes/Posts.php in all versions up to, and including, 2.4.16. The postedit action handler in Actions.php passes...

CVE-2026-4666 wpForo Forum <= 2.4.16 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Forum Post Modification via 'guestposting' Parameter

The wpForo Forum plugin for WordPress is vulnerable to unauthorized modification of data due to the use of extract$args, EXTROVERWRITE on user-controlled input in the edit method of classes/Posts.php in all versions up to, and including, 2.4.16. The postedit action handler in Actions.php passes...

CVE-2026-4666

CVE-2026-4666 affects the WordPress plugin wpForo Forum ≤ 2.4.16. The vulnerability arises from using extract($args, EXTR_OVERWRITE) on user-controlled input in Posts::edit(), with the post_edit action passing $_REQUEST['post'] to that method. An attacker can inject post[guestposting]=1 to overri...