CVE-2026-16064 Event Booking Manager for WooCommerce < 5.3.7 - Contributor+ Arbitrary Post Modification via mpwem_quick_edit_event
Contributors can modify arbitrary posts and pages due to missing object-level authorization checks in the quick-edit feature.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16064?
CVE-2026-16064 is a medium-severity missing authorization vulnerability in Unknown Event Booking Manager for WooCommerce, published on 2 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 does not properly verify authorization on the object being modified when quick-editing events, only checking a global capability, allowing users with the Contributor role and above to modify the title and publication status of arbitrary posts and pages on the site, including content they do not own.
Weakness: CWE-863
Which versions are affected by CVE-2026-16064?
How do I fix CVE-2026-16064?
No fix has been published for CVE-2026-16064 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-2026-16064 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16064 exists.
Sources
Also known as GHSA-5hqh-mj83-f2f6.