CVE-2026-32993 PUBLISHED

Assigner: hackerone
Reserved: 17.03.2026 Published: 13.05.2026 Updated: 13.05.2026

Improper sanitization of the status query parameter of the /unprotected/nova_error endpoint allows unauthenticated attacker to inject arbitrary HTTP header to the response.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CVSS Score: 8.3

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	WebPros
Product	cPanel
Versions	Default: unaffected affected from 11.132.0.0 to 11.132.0.32 (excl.) affected from 11.134.0.0 to 11.134.0.26 (excl.) affected from 11.136.0.0 to 11.136.0.10 (excl.)

Vendor	WebPros
Product	WP Squared
Versions	Default: unaffected affected from 11.132.1.0 to 11.136.1.12 (excl.)

References

https://support.cpanel.net/hc/en-us/articles/40437313190295-Security-CVE-2026-32993-cPanel-WHM-WP2-Security-Update-May-13-2026

Problem Types

CWE-93 CRLF Injection CWE