CVE-2026-96896 Malcure Malware Shield < 19.9.7 - Multisite Subsite Admin+ Arbitrary File Write and Deletion via wpmr_ajax_request
Subsite administrators can write and delete arbitrary files due to missing authorization checks, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96896?
CVE-2026-96896 is a high-severity missing authorization vulnerability in Unknown Malcure Malware Shield — Removal, Repair, Monitor, published on 27 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Malcure Malware Shield — Removal, Repair, Monitor WordPress plugin before 19.9.7 does not perform an authorisation check on one of its AJAX actions, allowing users with a subsite administrator role on a multisite network to write and delete arbitrary files in the network's shared filesystem, which can lead to remote code execution.
Weakness: CWE-862
Which versions are affected by CVE-2026-96896?
How do I fix CVE-2026-96896?
No fix has been published for CVE-2026-96896 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-2026-96896 being exploited?
There is no known exploitation of CVE-2026-96896 in the wild and no public exploit code.
Sources
Also known as GHSA-2hrm-754x-j578.