How severe is CVE-2026-32993?

CVE-2026-32993 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-32993 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-32993?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-32993 have an EU (EUVD) identifier?

Yes. CVE-2026-32993 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30181.

When was CVE-2026-32993 published?

CVE-2026-32993 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-32993

CVE-2026-32993 is a high-severity vulnerability with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-93.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30181
Weakness: CWE-93
Published: 2026-05-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-32993?: CVE-2026-32993 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-32993 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-32993?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-32993 have an EU (EUVD) identifier?: Yes. CVE-2026-32993 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30181.
When was CVE-2026-32993 published?: CVE-2026-32993 was published on 2026-05-13 and last updated on 2026-06-17.

References

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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