CVE-2026-66047 ProfilePress WordPress Plugin < 4.17.2 Unauthenticated Arbitrary Plugin Installation RCE
Unauthenticated attackers can achieve remote code execution by brute-forcing a weak token to install arbitrary plugins in ProfilePress.
- 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-2026-66047?
CVE-2026-66047 is a critical authentication bypass vulnerability in Proper Fraction ProfilePress, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an unauthenticated remote code execution vulnerability that allows unauthenticated attackers to install and activate arbitrary plugins by brute-forcing a weak 32-bit connect token via the ppress_connect_process AJAX handler. Attackers can supply a caller-controlled URL through the file request parameter to trigger silent plugin installation and activation, achieving PHP code execution as the web-server user.
Which versions are affected by CVE-2026-66047?
How do I fix CVE-2026-66047?
No fix has been published for CVE-2026-66047 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-66047 being exploited?
There is no known exploitation of CVE-2026-66047 in the wild and no public exploit code.
Sources
Also known as GHSA-7p89-vxx8-4q67, UBUNTU-CVE-2026-66047.