What’s Vulnerable › Vulnerabilities

CVE-2018-20951

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-01 · updated 2026-06-17
• Weakness: CWE-79

Description

cPanel before 68.0.27 allows self XSS in WHM Spamd Startup Config (SEC-387).

Affected products

• WebPros cPanel: from 61.9999.55 before 62.0.39; from 65.9999.38 before 66.0.35; from 67.9999.64 before 68.0.27 — fixed in 62.0.39, 66.0.35, 68.0.27

How to fix

Upgrade to a fixed version: WebPros cPanel 62.0.39, 66.0.35, 68.0.27. Check the vendor advisory for mitigations.

References

• https://documentation.cpanel.net/display/CL/68+Change+Log
• https://news.cpanel.com/cpanel-tsr-2018-0001-full-disclosure/
• https://documentation.cpanel.net/display/CL/68+Change+Log

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