PT-2026-40440 · Cpanel · Cpanel & Whm

Published 2026-05-12 · Updated 2026-05-14 · CVE-2026-32993

Positive Technologies (AI Summary)

CVSS v3.1

8.3

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions cPanel & WHM (affected versions not specified)

Description Improper sanitization of the status query parameter in the '/unprotected/nova error' endpoint allows an unauthenticated attacker to inject arbitrary HTTP headers into the response.

Recommendations Apply the security updates provided by cPanel.

Fix

Weakness Enumeration

CWE-93

Related Identifiers

CVE-2026-32993

Affected Products

Cpanel & Whm

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-32993 · Security Note
• https://support.cpanel.net/hc/en-us/articles/40437313190295-Security-CVE-2026-32993-cPanel-WHM-WP2-Security-Update-May-13-2026 · Note
• https://twitter.com/CVEnew/status/2054709178871288222 · Twitter Post
• https://reddit.com/r/interserver/comments/1tbe70x/cpanel_whm_targeted_security_release_patch · Reddit Post
• https://reddit.com/r/Hosting/comments/1tc6vif/cpanel_security_patches_13th_may · Reddit Post
• https://t.me/CVEtracker/53704 · Telegram Post
• https://twitter.com/KenBrubacher/status/2054404585570095283 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2054829588195258493 · Twitter Post
• https://reddit.com/r/cpanel/comments/1tbcbv3/and_again_new_vulnerabilities · Reddit Post