CVE-2026-19883

WPeMatico RSS Feed Fetcher <= 2.8.24 - Authenticated (Subscriber+) Privilege Escalation via Arbitrary Option Update to wpematico_import_settings admin_action

2026-08-21 14:22
Supakiad S. (m3ez)

Strategic Overview

Status
Patched in 2.8.25
Affected Plugin
WPeMatico RSS Feed Fetcher
Affected Version
<= 2.8.24
CVSS
8.8High
Weakness type
CWE-269 · Improper Privilege Management
CVE
CVE-2026-19883
View all WPeMatico RSS Feed Fetcher vulnerabilities

At a glance

CVE-2026-19883 is a high-severity Improper Privilege Management vulnerability in the WPeMatico RSS Feed Fetcher WordPress plugin, affecting versions <= 2.8.24. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.8.25; sites on affected versions should update now. Disclosed August 2026, reported by Supakiad S. (m3ez).

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-269: Improper Privilege Management

Reaching this weakness in WPeMatico RSS Feed Fetcher <= 2.8.24 takes an account at Subscriber level or above. Improper privilege management means the code lets an account end up with capabilities its role should not have.

It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. For WPeMatico RSS Feed Fetcher the fix is 2.8.25: builds <= 2.8.24 are affected, anything from 2.8.25 onward is not.

Remediation

Update to version 2.8.25, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: WPeMatico RSS Feed Fetcher 2.8.25 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-19883https://www.wordfence.com/threat-intel/vulnerabilities/id/4e591cb4-058d-4d8e-948e-d65ab01db618https://nvd.nist.gov/vuln/detail/CVE-2026-19883

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C