CVE-2026-16965
Received Received - Intake

Authenticated Post Meta Update and Template Deactivation in Solace WordPress Plugin

Publication date: 2026-08-09

Last updated on: 2026-08-09

Assigner: WPScan

Description
The Solace Extra WordPress plugin before 1.6.1 does not perform capability or nonce checks in one of its AJAX actions, allowing any authenticated user such as a subscriber (and, via CSRF, any logged-in user) to update post meta on arbitrary posts and to deactivate the site's active templates.

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Meta Information

Published
2026-08-09
Last Modified
2026-08-09
Generated
2026-08-09
AI Q&A
2026-08-09
EPSS Evaluated
N/A
NVD
CVE-2026-16965
EUVD
EUVD-2026-54889

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
solace_extra wordpress_plugin to 1.6.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

The Solace Extra WordPress plugin before version 1.6.1 has a vulnerability due to missing capability and nonce checks in an AJAX action. This allows any authenticated user, including subscribers, to update post meta on any post and deactivate the site's active templates. The issue can also be exploited via CSRF by any logged-in user.

Detection Guidance

Check the installed version of the Solace Extra WordPress plugin. If it is below 1.6.1, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files for version details.

Impact Analysis

An attacker could modify post meta on your site or deactivate active templates, potentially disrupting site functionality or content. Since subscribers can exploit this, it lowers the barrier for unauthorized changes.

Compliance Impact

This vulnerability could potentially affect compliance with GDPR and HIPAA by allowing unauthorized users to modify post meta and deactivate templates. Unauthorized changes to data or system configurations may violate data integrity and access control requirements under these regulations.

Mitigation Strategies

Update the Solace Extra WordPress plugin to version 1.6.1 or later immediately. Remove or disable the plugin if updating is not possible. Review post meta and active templates for unauthorized changes after updating.

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