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CVE-2026-29203

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system…

Medium5.3EPSS 0.49%
Published
Updated
Reserved
Assigned by
hackerone

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.

Timeline

  1. ID reserved

    By hackerone

  2. · 2 months later

    Published

  3. · 7 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-29203, by who scored it
Scored byCVSSScoreVector
hackeroneCNA (assigner)4.0Medium5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
CISA-ADPADP (enrichment)3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Awaiting Analysis4.0Medium5.3CVSS: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 (exploitation in 30 days)
0.49% · top 57% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • WebPros · cPanel

    • affected 11.136.0.0 – < 11.136.0.9
    • affected 11.134.0.0 – < 11.134.0.25
    • affected 11.132.0.0 – < 11.132.0.31
    • affected 11.130.0.0 – < 11.130.0.22
    • affected 11.126.0.0 – < 11.126.0.58
    • affected 11.124.0.0 – < 11.124.0.37
    • affected 11.118.0.0 – < 11.118.0.66
    • affected 11.110.0.0 – < 11.110.0.117
    • affected 11.102.0.0 – < 11.102.0.41
    • affected 11.94.0.0 – < 11.94.0.30
    • affected 11.86.0.0 – < 11.86.0.43

  • WebPros · cPanel (CloudLinux 6, CentOS 6)

    • affected 11.110.0.0 – < 11.110.0.116

  • WebPros · WP Squared

    • affected 11.136.1.0 – < 11.136.1.10

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .