WordPress Plugin Missing Capability Check Enables Unauthorized Data Deletion

The EDD Product Catalog Feed by PixelYourSite plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to a missing capability check on the wpeddpcf_delete_feed function in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary option values on the WordPress site. This can be leveraged to delete an option that would create an error on the site and deny service to legitimate users.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

The EDD Product Catalog Feed by PixelYourSite plugin contains a critical authorization flaw in the wpeddpcf_delete_feed function that fails to verify user permissions before executing delete operations. This vulnerability allows authenticated subscribers and higher-privileged users to arbitrarily delete WordPress option values, potentially disrupting site functionality or triggering application errors. Any WordPress installation using this plugin through version 1.0.2 is at risk, particularly those with permissive user role configurations. The attack requires only basic authentication access, making it a significant concern for multi-user WordPress environments where subscriber accounts are commonly distributed.

Casky's 283 matched skills leverage Claude AI with extended reasoning to identify the attack patterns spanning MITRE techniques TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would detect unauthorized option deletion attempts through monitoring CWE-862 authorization bypass signatures—specifically function calls lacking capability checks before privileged operations. The platform's skill mapping would flag abnormal deletion patterns on wp_options table entries, correlate subscriber-level user activity with admin-level actions, and surface inconsistent permission enforcement across the plugin's AJAX handlers. Security teams would see findings highlighting the missing do_action('wp_verify_nonce') and current_user_can() checks, enabling rapid remediation before malicious actors exploit the gap to trigger denial-of-service conditions through targeted configuration deletion.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-9331.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-9331

Casky has 283 skills that investigate the attack patterns behind CVE-2026-9331. Run one and get CVSS-scored findings in 3 minutes.

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