What’s Vulnerable › Vulnerabilities

CVE-2017-18451

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-02 · updated 2026-06-17
• Weakness: CWE-264

Description

cPanel before 64.0.21 allows attackers to read a user's crontab file during a short time interval upon a cPAddon upgrade (SEC-257).

Affected products

• WebPros cPanel: from 56.0.1 before 56.0.49; from 58.0.3 before 58.0.49; from 60.0.3 before 60.0.43; from 62.0.1 before 62.0.24; from 64.0.0 before 64.0.21 — fixed in 56.0.49, 58.0.49, 60.0.43, 62.0.24, 64.0.21

How to fix

Upgrade to a fixed version: WebPros cPanel 56.0.49, 58.0.49, 60.0.43, 62.0.24. Check the vendor advisory for mitigations.

References

• https://documentation.cpanel.net/display/CL/64+Change+Log
• https://news.cpanel.com/cpanel-tsr-2017-0003-full-disclosure/
• https://documentation.cpanel.net/display/CL/64+Change+Log

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