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5.5
CVE-2018-20947: cPanel allows unauthorized file changes via telnet script
CVE-2018-20947 · published 7 years ago
Summary
cPanel versions prior to 68.0.27 let an attacker use the telnetcrt script to write or modify files on the server. This could let someone add malicious code or alter existing content without proper permission. Update cPanel to the latest version or apply the provided patch to stop the script from performing these writes.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| cpanel | cpanel |
>= 61.9999.55, < 62.0.39 >= 65.9999.38, < 66.0.35 >= 67.9999.64, < 68.0.27 cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* |
Original advisory text
cPanel before 68.0.27 allows certain file-write operations via the telnetcrt script (SEC-356).
cPanel before 68.0.27 allows certain file-write operations via the telnetcrt script (SEC-356).
References
- https://documentation.cpanel.net/display/CL/68+Change+Log Release Notes Vendor Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-668Exposure of Resource to Wrong Sphere
Timeline
Published1 Aug 2019
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-20947 · NVD
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