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7.2

cPanel before 70.0.23 can let attackers run code

CVE-2018-20911 · published 7 years ago
Summary

Versions of cPanel older than 70.0.23 expose a flaw that lets a remote user execute their own programs while the system checks a component. This could allow unwanted code to run on your server, potentially compromising data or services. Upgrade cPanel to version 70.0.23 or later to close the issue.

What to do
  • Update cpanel cpanel to version 70.0.23 or later.
Affected software
VendorProductAffected versions
cpanel cpanel < 70.0.23
cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*
Original advisory text
cPanel before 70.0.23 allows code execution because "." is in @INC during a Perl syntax check of cpaddonsup (SEC-359).
cPanel before 70.0.23 allows code execution because "." is in @INC during a Perl syntax check of cpaddonsup (SEC-359).
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.2 High
Exploitation
2% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published1 Aug 2019
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-20911 · NVD
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