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CVE-2026-29203

HIGHCVSS 8.8/10EPSS 0.49%

Last modified

CVE-2026-29203 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0
5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
WebProscPanel>= 11.136.0.0, < 11.136.0.9; >= 11.134.0.0, < 11.134.0.25; >= 11.132.0.0, < 11.132.0.31; >= 11.130.0.0, < 11.130.0.22; >= 11.126.0.0, < 11.126.0.58; >= 11.124.0.0, < 11.124.0.37; >= 11.118.0.0, < 11.118.0.66; >= 11.110.0.0, < 11.110.0.117; >= 11.102.0.0, < 11.102.0.41; >= 11.94.0.0, < 11.94.0.30; >= 11.86.0.0, < 11.86.0.43
WebProscPanel (CloudLinux 6, CentOS 6)>= 11.110.0.0, < 11.110.0.116
WebProsWP Squared>= 11.136.1.0, < 11.136.1.10

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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.
How severe is CVE-2026-29203?
CVE-2026-29203 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.
How do I fix CVE-2026-29203?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST