WordPress Plugin Privilege Escalation via Inadequate Capability Checks

The All-in-One WP Migration and Backup WordPress plugin before 7.111 does not perform any capability check on several of its AJAX actions, gating them only on an installation-wide secret which it discloses to any user permitted to export the site, allowing such a user to import an arbitrary site archive and gain administrator access. Exploitation requires an administrator to have granted the export capability to a role that does not hold the All-in-One WP Migration and Backup WordPress plugin before 7.111's own import capability, which is not a default configuration.

Casky was already ahead

This CVE exploits attack patterns that Casky's 224matched 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 All-in-One WP Migration and Backup WordPress plugin before version 7.111 contains a critical privilege escalation vulnerability stemming from insufficient authorization controls on AJAX actions. The vulnerability allows users with export capabilities to bypass security restrictions and gain administrator access by importing malicious site archives. This affects WordPress installations where administrators have delegated export permissions to lower-privileged roles, creating a pathway for lateral privilege escalation. The flaw is particularly dangerous because it leverages a feature intended for legitimate site management, making detection through conventional access control audits challenging.

Casky's 224 mapped security skills leverage Claude AI's extended reasoning to identify the attack patterns underlying TA0004 (Privilege Escalation) techniques. Practitioners using Casky would detect this vulnerability through skill-based analysis that reveals: (1) inadequate capability verification on AJAX endpoints, mapping to CWE-269 (Improper Access Control), (2) disclosure of installation-wide secrets to unprivileged users, enabling capability bypass, and (3) the ability to execute privileged operations (archive import with admin context) without proper role validation. The platform's MITRE ATT&CK correlation would flag this as an abuse of delegated functionality, with findings showing how export permissions become an escalation vector. Security practitioners would observe indicators of compromise including unexpected administrative role assignments following site imports and audit logs revealing AJAX calls from non-admin users triggering admin-level operations.

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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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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

224 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-81810.

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

Investigate the attack patterns behind CVE-2026-81810

Casky has 224 skills that investigate the attack patterns behind CVE-2026-81810. Run one and get CVSS-scored findings in 3 minutes.

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