CVE-2026-107770

Photo Engine (Media Organizer & Lightroom) <= 6.5.6 - Missing Authorization to Unauthenticated Arbitrary Attachment Deletion and Upload via /?wplr-sync-api 'delete' / 'sync' action

2026-10-15 17:49
Wordfence PRISM

Strategic Overview

Status
Patched in 6.5.7
Affected Plugin
Photo Engine (Media Organizer & Lightroom)
Affected Version
<= 6.5.6
CVSS
6.8Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-107770
View all Photo Engine (Media Organizer & Lightroom) vulnerabilities

At a glance

CVE-2026-107770 is a medium-severity Missing Authorization vulnerability in the Photo Engine (Media Organizer & Lightroom) WordPress plugin, affecting versions <= 6.5.6. It carries a CVSS score of 6.8 (reachable over the network; high integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 6.5.7; sites on affected versions should update now. Disclosed October 2026, reported by Wordfence PRISM.

Vulnerability Overview

The Photo Engine (Media Organizer & Lightroom) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.5.6 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to permanently delete arbitrary media attachments via wp_delete_attachment and upload new attachments to the site, actions that require the upload_files or edit_others_posts capabilities. A Subscriber-level user can obtain their own wplr_auth_token directly from the profile.php page source, because the admin screen guard in Meow_WPLR_Sync_Admin::__construct() is commented out, causing wp_localize_script to leak the token into every admin page view; this token can then be used from a cookie-less HTTP session to invoke destructive actions on the /?wplr-sync-api endpoint.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no privileges on the target site. A successful exploit has high impact on integrity, availability.

CWE-862: Missing Authorization

Photo Engine (Media Organizer & Lightroom) <= 6.5.6 carries this weakness at __construct(), and reaching it 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 Photo Engine (Media Organizer & Lightroom) the fix is 6.5.7: builds <= 6.5.6 are affected, anything from 6.5.7 onward is not.

Remediation

Update to version 6.5.7, 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: Photo Engine (Media Organizer & Lightroom) 6.5.7 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-107770https://www.wordfence.com/threat-intel/vulnerabilities/id/2f32c361-9bb3-417b-a5a9-02e48bfa33b4https://nvd.nist.gov/vuln/detail/CVE-2026-107770

Related records

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