PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-42658 Mamunur Rashid CVE debrief

CVE-2026-42658 is a HIGH severity Unauthenticated Cross Site Scripting (XSS) vulnerability in the Classified Listing plugin, affecting versions up to 5.3.8. The vulnerability has a CVSS score of 7.1 and was published on [cvePublishedAt](https://www.cve.org/CVERecord?id=CVE-2026-42658).

Vendor
Mamunur Rashid
Product
Classified Listing
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Users of Classified Listing plugin versions up to 5.3.8 should apply patches or mitigations to prevent exploitation.

Technical summary

The vulnerability is caused by an Unauthenticated Cross Site Scripting (XSS) issue in the Classified Listing plugin. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates to Classified Listing plugin versions up to 5.3.8.
  • Refer to [ref-4](https://patchstack.com/database/wordpress/plugin/classified-listing/vulnerability/wordpress-classified-listing-plugin-5-3-8-cross-site-scripting-xss-vulnerability?_s_id=cve) for mitigation or vendor-prov

Evidence notes

Evidence suggests that this vulnerability was discovered by Patchstack.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-42658 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-42658

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

  • CVE-2026-42658 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42658

    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.