CVE-2026-2899 Fluent Forms Pro Add On Pack <= 6.1.17 - Missing Authorization to Unauthenticated Arbitrary Attachment Deletion
Unauthenticated attackers can delete arbitrary WordPress media attachments due to missing authorization checks in the Fluent Forms Pro Add On Pack plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2899?
CVE-2026-2899 is a medium-severity missing authorization vulnerability in techjewel Fluent Forms Pro Add On Pack, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 6.1.17. This is due to the `deleteFile()` method in the `Uploader` class lacking nonce verification and capability checks. The AJAX action is registered via `addPublicAjaxAction()` which creates both `wp_ajax_` and `wp_ajax_nopriv_` hooks. This makes it possible for unauthenticated attackers to delete arbitrary WordPress media attachments via the `attachment_id` parameter. Note: The researcher described file deletion via the `path` parameter using `sanitize_file_name()`, but the actual code uses `Protector::decrypt()` for path-based deletion which prevents exploitation. The vulnerability is exploitable via the `attachment_id` parameter instead.
Weakness: CWE-862
Which versions are affected by CVE-2026-2899?
How do I fix CVE-2026-2899?
No fix has been published for CVE-2026-2899 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-2899 being exploited?
There is no known exploitation of CVE-2026-2899 in the wild and no public exploit code.
Sources
Also known as GHSA-47mx-mh44-vmwj.