CVE-2026-39620 WordPress Appointment theme <= 3.5.5 - Cross Site Request Forgery (CSRF) to Arbitrary File Upload vulnerability
Attackers can upload arbitrary files, including web shells, via CSRF, leading to remote code execution on WordPress sites using the Appointment theme.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-39620?
CVE-2026-39620 is a critical vulnerability in priyanshumittal Appointment, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cross-Site Request Forgery (CSRF) vulnerability in priyanshumittal Appointment appointment allows Upload a Web Shell to a Web Server.This issue affects Appointment: from n/a through <= 3.5.5.
Weakness: CWE-352
Which versions are affected by CVE-2026-39620?
How do I fix CVE-2026-39620?
No fix has been published for CVE-2026-39620 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-39620 being exploited?
There is no known exploitation of CVE-2026-39620 in the wild and no public exploit code.
Sources
Also known as GHSA-5rf8-xhgp-9mg9.