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PatchSiren cyber security CVE debrief

CVE-2026-66442 YayCommerce CVE debrief

A Subscriber Broken Access Control vulnerability exists in YayPricing plugin versions <= 3.5.6. The CVE record was published on 2026-07-27T15:17:11.443Z and has not been modified since then. This vulnerability has a CVSS score of 5.4 and a severity of MEDIUM, classified as CWE-862. The vulnerability allows potential unauthorized access to affected systems. Users of YayPricing plugin versions <= 3.5.6 should review and apply patches to prevent potential unauthorized access.

Vendor
YayCommerce
Product
YayPricing
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-27
Original CVE updated
2026-07-27
Advisory published
2026-07-27
Advisory updated
2026-07-27

Who should care

Users of YayPricing plugin versions <= 3.5.6 should review and apply patches to prevent potential unauthorized access. Affected operators, platforms, vulnerability-management teams, and security teams should prioritize patching and review compensating controls for exposed systems.

Technical summary

The vulnerability has a CVSS score of 5.4 and a severity of MEDIUM. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L. The weakness is classified as CWE-862. The vulnerability exists in YayPricing plugin versions <= 3.5.6 and allows potential unauthorized access. The official CVE record and NVD detail page provide additional information on the vulnerability.

Defensive priority

Medium priority due to the CVSS score and severity.

Recommended defensive actions

  • Review and apply patches for YayPricing plugin versions <= 3.5.6
  • Monitor for potential unauthorized access
  • Verify plugin version and update if necessary
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The vulnerability was reported by [email protected] and has a weak confidence level due to limited information. Limited source detail is available for CVE-2026-66442. Defenders should verify the affected scope and severity based on the official CVE record and NVD detail page. The CVE record was published on 2026-07-27T15:17:11.443Z and has not been modified since then. Additional verification tasks are recommended to ensure accurate understanding of the vulnerability.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-27T15:17:11.443Z and has not been modified since then.