CVE-2026-29203 Path traversal in WP Squared
Authenticated cPanel users can escalate privileges or cause denial of service by exploiting symlink following in the Nova plugin's chmod call.
- 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-2026-29203?
CVE-2026-29203 is a medium-severity path traversal vulnerability in WebPros WP Squared, published on 8 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.
Weakness: CWE-61
Which versions are affected by CVE-2026-29203?
How do I fix CVE-2026-29203?
No fix has been published for CVE-2026-29203 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-29203 being exploited?
There is no known exploitation of CVE-2026-29203 in the wild and no public exploit code.
Sources
Also known as GHSA-3x6m-3grh-599c.