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PatchSiren cyber security CVE debrief

CVE-2026-53738 Inisev CVE debrief

CVE-2026-53738 is a HIGH severity vulnerability in the Copy & Delete Posts plugin for WordPress. The plugin's cdp_action_handling AJAX handler allows any plugin-enabled non-admin role to invoke every operation, including deleting posts and overwriting plugin settings. This is possible due to a lack of per-function capability checks. The vulnerability has a CVSS score of 7.2 and was published on [cvePublishedAt](https://www.cve.org/CVERecord?id=CVE-2026-53738).

Vendor
Inisev
Product
Copy & Delete Posts
CVSS
HIGH 7.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-06-11
Advisory published
2026-06-10
Advisory updated
2026-06-11

Who should care

Users of the Copy & Delete Posts plugin for WordPress should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability exists in the cdp_action_handling AJAX handler of the Copy & Delete Posts plugin. Any plugin-enabled non-admin role can invoke every operation in the handler, including deleting posts and overwriting plugin settings via the f parameter. This bypasses per-function capability checks.

Defensive priority

HIGH

Recommended defensive actions

  • Update to a patched version of the Copy & Delete Posts plugin.
  • Restrict access to the plugin's functionality to only admin roles.
  • Monitor for suspicious activity related to the plugin.

Evidence notes

The vulnerability was reported by [ref-5](https://www.vulncheck.com/advisories/copy-delete-posts-through-privilege-escalation-via-cdp-action-handling-handler).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53738 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53738

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

  • CVE-2026-53738 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53738

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

Supplemental references

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.