CVE-2026-89413

HighCVSS 8.1

Published: 18/09/2026(UTC)Updated: 18/09/2026(UTC)Translated: 18/09/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.29%

22th percentile - higher than 22% of all known CVEs

Summary

The Filter Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to and including 1.1.4. An authenticated attacker with Subscriber-level access can delete arbitrary Filter Gallery records by supplying attacker-controlled gallery IDs.

Risk Assessment

An attacker with a basic account can delete gallery data, including filters, image mappings, and settings, leading to data loss and site disruption.

Recommendation

Update the Filter Gallery plugin to a version later than 1.1.4 or disable it until a fix is deployed.

Other vulnerabilities in Filter Gallery

CVE-2026-90978High
The Filter Gallery WordPress plugin before 1.1.5 does not verify the nonce on several of its AJAX handlers when the nonce field is omitted, and applies no capability check, allowing low-privileged users to overwrite the content of arbitrary posts and delete the plugin's stored gallery options.

Original NVD description (English source)

The Filter Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete any arbitrary Filter Gallery records — including all associated filters, image mappings, settings, and details options — by supplying attacker-controlled gallery IDs. The nonce bypass requires omitting the nonce POST field entirely rather than submitting an invalid value, as a present-but-invalid nonce is correctly rejected.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS