What’s Vulnerable › Vulnerabilities

CVE-2020-26099

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-25 · updated 2026-06-17

Description

cPanel before 88.0.3 allows attackers to bypass the SMTP greylisting protection mechanism (SEC-491).

Affected products

• WebPros cPanel: before 88.0.3 — fixed in 88.0.3

How to fix

Upgrade to a fixed version: WebPros cPanel 88.0.3. Check the vendor advisory for mitigations.

References

• https://docs.cpanel.net/changelogs/88-change-log/
• https://docs.cpanel.net/changelogs/88-change-log/

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