High severity · published May 13, 2026
CVE-2026-32993
Improper sanitization of the `status` query parameter of the `/unprotected/nova_error` endpoint allows unauthenticated attacker to inject arbitrary HTTP header to the response
8.3
CVSS
0.3%
EPSS
No
On KEV
Description
Improper sanitization of the `status` query parameter of the `/unprotected/nova_error` endpoint allows unauthenticated attacker to inject arbitrary HTTP header to the response.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
WP Squared · WebPros
11.132.1.0 before 11.136.1.12 · source: vendor
CP
cPanel · WebPros
11.132.0.0 before 11.132.0.32; 11.134.0.0 before 11.134.0.26; 11.136.0.0 before 11.136.0.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32993
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32993
support.cpanel.net
https://support.cpanel.net/hc/en-us/articles/40437313190295-Security-CVE-2026-32993-cPanel-WHM-WP2-Security-Update-May-13-2026
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