CVE-2026-89301

rtMedia for WordPress, BuddyPress and bbPress <= 4.7.13 - Missing Authorization to Unauthenticated Limited File Read/Disclosure and Limited File Deletion via Sideload via 'files[tmp_name]' Parameter

2026-10-09 15:29
Supakiad S. (m3ez)

Strategic Overview

Status
Patched in 4.7.14
Affected Plugin
rtMedia for WordPress, BuddyPress and bbPress
Affected Version
<= 4.7.13
CVSS
7.5High
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-89301
View all rtMedia for WordPress, BuddyPress and bbPress vulnerabilities

At a glance

CVE-2026-89301 is a high-severity Missing Authorization vulnerability in the rtMedia for WordPress, BuddyPress and bbPress WordPress plugin, affecting versions <= 4.7.13. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 4.7.14; sites on affected versions should update now. Disclosed October 2026, reported by Supakiad S. (m3ez).

Vulnerability Overview

The rtMedia for WordPress, BuddyPress and bbPress plugin for WordPress is vulnerable to limited file deletion due to insufficient file path validation in the process function in all versions up to, and including, 4.7.13 This makes it possible for unauthenticated attackers to delete arbitrary safe files on the server.. The public nonce (rtmedia_upload_nonce) is emitted into frontend JavaScript on any page rendering the rtMedia gallery or upload shortcode, making it retrievable by unauthenticated visitors without any prior authentication or privileged action.

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 privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-862: Missing Authorization

Reaching this weakness in rtMedia for WordPress, BuddyPress and bbPress <= 4.7.13 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For rtMedia for WordPress, BuddyPress and bbPress the fix is 4.7.14: builds <= 4.7.13 are affected, anything from 4.7.14 onward is not.

Remediation

Update to version 4.7.14, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: rtMedia for WordPress, BuddyPress and bbPress 4.7.14 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-89301https://www.wordfence.com/threat-intel/vulnerabilities/id/ea679227-5ab3-408b-ae1b-340099880789https://nvd.nist.gov/vuln/detail/CVE-2026-89301

Related records

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