CVE-2026-14939 Visualizer: Tables and Charts Manager < 4.0.6 - Contributor+ Server-Side Request Forgery via JSON Import
Contributors can exploit SSRF in Visualizer plugin to retrieve cloud instance metadata and IAM credentials from link-local endpoints.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14939?
CVE-2026-14939 is a medium-severity server-side request forgery vulnerability in Unknown Visualizer, published on 4 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Visualizer WordPress plugin before 4.0.6 does not restrict a user-supplied URL to safe address ranges before fetching it server-side, allowing users with Contributor-level access and above to perform Server-Side Request Forgery against link-local instance-metadata endpoints. As the fetched response is returned in the reply, the attack is non-blind, enabling retrieval of cloud instance metadata (including IAM credentials) on cloud-hosted sites.
Weakness: CWE-918
Which versions are affected by CVE-2026-14939?
How do I fix CVE-2026-14939?
No fix has been published for CVE-2026-14939 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-14939 being exploited?
There is no known exploitation of CVE-2026-14939 in the wild and no public exploit code.
Sources
Also known as GHSA-h5rr-p7mm-2q67.