CVE-2026-103304 eaSYNC < 1.3.31 - Unauthenticated Cancellation Request Creation and Email Template Update
Unauthenticated attackers can create cancellation requests and modify email templates due to missing authorization checks in the eaSYNC Booking 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-2026-103304?
CVE-2026-103304 is a medium-severity missing authorization vulnerability in Unknown eaSYNC Booking, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The eaSYNC Booking WordPress plugin before 1.3.31 does not perform authorization or nonce checks on several of its cancellation-related AJAX actions, allowing unauthenticated users to create booking cancellation requests, trigger booking notification emails, and overwrite the content of the emails the site sends.
Weakness: CWE-862
Which versions are affected by CVE-2026-103304?
How do I fix CVE-2026-103304?
No fix has been published for CVE-2026-103304 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-2026-103304 being exploited?
There is no known exploitation of CVE-2026-103304 in the wild and no public exploit code.
Sources
Also known as GHSA-pqxc-w2xw-35h9.