Exploit discussion active in current signal (3 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
The wpForo Forum plugin for WordPress is vulnerable to unauthorized modification of data due to the use of `extract($args, EXTR_OVERWRITE)` on user-controlled input in the `edit()` method of `classes/Posts.php` in all versions up to, and including, 2.4.16. The `post_edit` action handler in `Actions.php` passes `$_REQUEST['post']` directly to `Posts::edit()`, which calls `extract($args, EXTR_OVERWRITE)`. An attacker can inject `post[guestposting]=1` to overwrite the local `$guestposting` variable, causing the entire permission check block to be skipped. The nonce check uses a hardcoded `wpforo_verify_form` action shared across all 8 forum templates, so any user who can view any forum page obtains a valid nonce. This makes it possible for authenticated attackers, with Subscriber-level access and above, to edit the title, body, name, and email fields of any forum post, including posts in private forums, admin posts, and moderator posts. Content passes through `wpforo_kses()` which strips JavaScript but allows rich HTML.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
NONE
CVE-2026-4666 Unauthorized Data Modification in wpForo Forum Plugin for WordPress Up to 2.4.16 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-4666
Post summary
A new CVE (CVE-2026-4666) for the wpForo WordPress plugin is disclosed, indicating an unauthorized data modification flaw. No proof‑of‑concept, exploit, active exploitation reports, or patch information are provided.
https://atomicedge.io/cve-proof/cve-2026-4666-wpforo-version-2-4-16-medium-vulnerability-proof-of-concept CVE-2026-4666 #WordPress plugin #vulnerability wpforo #cybersecurity #wordpressfirewall #wordpresssecurity #hacking #wpsecurity #atomicedge
Post summary
The post highlights a proof‑of‑concept for CVE‑2026‑4666 impacting wpForo 2.4.16, providing version and severity details but no exploit code or remediation steps.
CVE-2026-4666 The wpForo Forum plugin for WordPress is vulnerable to unauthorized modification of data due to the use of `extract($args, EXTR_OVERWRITE)` on user-controlled input in … https://www.cve.org/CVERecord?id=CVE-2026-4666
Post summary
This post announces a vulnerability (CVE-2026-4666) in the wpForo Forum WordPress plugin that permits unauthorized data modification through a PHP extract() misuse.