All-in-One Video Gallery <= 4.8.5 - Authenticated (Subscriber+) Server-Side Request Forgery via 'vdl' Parameter
Strategic Overview
- Status
- Patched in 4.9.0
- Affected Plugin
- All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos
- Affected Version
<= 4.8.5- CVSS
- 6.4Medium
- Weakness type
- CWE-918 · Server-Side Request Forgery (SSRF)
- CVE
CVE-2026-12123
At a glance
CVE-2026-12123 is a medium-severity Server-Side Request Forgery (SSRF) vulnerability in the All-in-One Video Gallery WordPress plugin, affecting versions <= 4.8.5. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 4.9.0; sites on affected versions should update now. Disclosed July 2026, reported by KoreaInfoSec.
Vulnerability Overview
The All-in-One Video Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.8.5 via the 'vdl' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. A Subscriber-level attacker can plant an internal or loopback URL in the `mp4` post meta of a newly created `aiovg_videos` post via XML-RPC `wp.newPost`, then trigger the unauthenticated `?vdl=<post_id>` endpoint to force the server to fetch that URL and stream the full response body back to the requester.
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-918: Server-Side Request Forgery (SSRF)
All-in-One Video Gallery <= 4.8.5 carries this weakness at vdl, and reaching it takes an account at Subscriber level or above. Server-side request forgery means the application fetches a URL supplied by the caller, turning the server into a proxy for requests the attacker could not make directly.
The request originates from inside the hosting network, which is how these flaws reach cloud metadata endpoints, internal admin panels and services that trust local traffic. For All-in-One Video Gallery the fix is 4.9.0: builds <= 4.8.5 are affected, anything from 4.9.0 onward is not.
Remediation
Update to version 4.9.0, or a newer patched version
How does WordSec protect against this?
An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: All-in-One Video Gallery 4.9.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos
- 8.8CVE-2025-12957: All-in-One Video Gallery Arbitrary File Upload
CVE-2025-12957 - 8.8CVE-2025-12966: All-in-One Video Gallery… – Authenticated (Author+)
CVE-2025-12966 - 8.8CVE-2024-4670: All-in-One Video Gallery <= 3.6.5 Local File Inclusion
CVE-2024-4670 - 8.8CVE-2024-4033: All-in-One Video Gallery <= 3.6.4 Arbitrary File Upload
CVE-2024-4033 - 7.5CVE-2022-2633: All-in-One Video… Arbitrary File Download & SSRF
CVE-2022-2633 - 7.2CVE-2021-24970: All-In-One-Gallery <= 2.4.9 Admin+ LFI
CVE-2021-24970 - 6.5CVE-2025-14947: All-in-One Video Gallery Unauthenticated Bunny Stream
CVE-2025-14947 - 6.4CVE-2024-6629: All-in-One Video Gallery <= 3.7.1 Stored XSS
CVE-2024-6629
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C