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PatchSiren cyber security CVE debrief

CVE-2026-42651 Mamunur Rashid CVE debrief

The Classified Listing plugin, version <= 5.3.9, has a broken access control vulnerability allowing subscribers to access unauthorized content. This issue affects defenders and administrators using the plugin, as it may lead to potential unauthorized access to sensitive content by subscribers. To address this vulnerability, verify and update Classified Listing plugin versions to prevent unauthorized access. The CVE record and

Vendor
Mamunur Rashid
Product
Classified Listing
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-10-25
Advisory published
2026-06-15
Advisory updated
2026-10-25

Who should care

Defenders and administrators using the Classified Listing plugin should assess exposure and prioritize remediation.

Why it matters

Defenders should care about CVE-2026-42651 as it affects the Classified Listing plugin, potentially allowing subscribers to access unauthorized content. Administrators should assess exposure, prioritize remediation, and verify plugin versions.

  • Potential unauthorized access to sensitive content by subscribers
  • Need to verify and update Classified Listing plugin versions
  • Possible impact on subscriber access controls and content security

Technical summary

The Classified Listing plugin, version <= 5.3.9, has a broken access control vulnerability allowing subscribers to access unauthorized content.

Defensive priority

Defenders should prioritize verifying and updating Classified Listing plugin versions to prevent unauthorized access.

Recommended defensive actions

  • Verify Classified Listing plugin version and update to a fixed version if available
  • Restrict access to sensitive content for subscribers
  • Monitor plugin updates and patch management

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is needed.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-42651 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-42651

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-42651 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42651

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.