Vulnerability in Webpros Cpanel
CVE-2026-29203
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Webpros Cpanel — versions 11.124.0.0, 11.94.0.0, 11.134.0.0
- Webpros Cpanel (Centos 6, Cloudlinux 6) — versions 11.110.0.0
- Webpros Cpanel (Cloudlinux 6, Centos 6) — versions 0, 11.110.0.0
- Webpros Wp Squared — versions 11.136.1.0, 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-29203?
- CVE-2026-29203 is a high-severity vulnerability in Webpros Cpanel, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 8.8/10. Published 2026-05-08.
- How severe is CVE-2026-29203?
- High severity. CVSS v3 base score is 8.8 out of 10.