Is CVE-2026-27384 in the CISA KEV catalog?

No. CVE-2026-27384 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-27384?

CVE-2026-27384 has a CVSS v3 base score of 9.0 (CRITICAL).

What is the EPSS score for CVE-2026-27384?

CVE-2026-27384 has an EPSS score of 0.30% (22th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-27384

CRITICAL

9.0

CVSS v3

NVD

Description

Improper Validation of Specified Quantity in Input vulnerability in BoldGrid W3 Total Cache w3-total-cache allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects W3 Total Cache: from n/a through <= 2.9.1.

CWE-1284

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

https://patchstack.com/database/Wordpress/Plugin/w3-total-cache/vulnerability/wordpress-w3-total-cache-plugin-2-9-1-arbitrary-code-execution-vulnerability?_s_id=cve

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.