CVE-2026-18934

RSS Aggregator by Feedzy <= 5.2.5 - Missing Authorization to Authenticated (Author+) Cross-User Import Job Manipulation and Post Deletion

2026-08-06 00:00
Farid Narimanov

Strategic Overview

Status
Patched in 5.2.6
Affected Plugin
RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator
Affected Version
<= 5.2.5
CVSS
4.3Medium
Weakness type
CWE-863 · Incorrect Authorization
CVE
CVE-2026-18934
View all RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator vulnerabilities

At a glance

CVE-2026-18934 is a medium-severity Incorrect Authorization vulnerability in the RSS Aggregator by Feedzy WordPress plugin, affecting versions <= 5.2.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Author level or above. The issue is fixed in version 5.2.6; sites on affected versions should update now. Disclosed August 2026, reported by Farid Narimanov.

Vulnerability Overview

The RSS Aggregator by Feedzy plugin for WordPress is vulnerable to unauthorized access in versions up to, and including, 5.2.5. This is due to missing authorization checks on AJAX handlers for import job actions, allowing any authenticated user to act on posts they do not own. This makes it possible for authenticated attackers, with author-level access and above, to manipulate or delete import jobs belonging to other users, including triggering runs, purging data, and clearing error logs.

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.

CWE-863: Incorrect Authorization

Reaching this weakness in RSS Aggregator by Feedzy <= 5.2.5 takes an account at Author level or above. Incorrect authorization means a permission check exists but evaluates the wrong thing, so it passes for callers it was meant to stop.

The action runs for users the code intended to exclude, with the same effect as having no check at all. For RSS Aggregator by Feedzy the fix is 5.2.6: builds <= 5.2.5 are affected, anything from 5.2.6 onward is not.

Remediation

Update to version 5.2.6, 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: RSS Aggregator by Feedzy 5.2.6 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-18934https://www.wordfence.com/threat-intel/vulnerabilities/id/515339da-c4dc-4bda-99b7-49f326ef2ab0https://nvd.nist.gov/vuln/detail/CVE-2026-18934

Related records

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