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CVE-2026-19883

8.8 · HIGH

The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_impor…

Published Aug 22, 2026CWE-269EPSS 0.69%

Overview

CVE-2026-19883 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_import_settings function in all versions up to, and including, 2.8.24. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/etruel/wpematico/commit/e297f41b49c6ec76635b006dff8a964a99a1ed24Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.23/app/tools_page.php#L224Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.23/app/wpematico_functions.php#L2077Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.23/app/wpematico_functions.php#L2096Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.23/wpematico_class.php#L59Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.24/app/tools_page.php#L224Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.24/app/wpematico_functions.php#L2077Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.24/app/wpematico_functions.php#L2096Refplugins.trac.wordpress.org/browser/wpematico/tags/2.8.24/wpematico_class.php#L59Refwww.wordfence.com/threat-intel/vulnerabilities/id/4e591cb4-058d-4d8e-948e-d65ab01db618?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-19883?

CVE-2026-19883 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-19883?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-19883?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-19883?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-19883 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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