CVE-2026-6663: Graphic Web Design GWD Connect missing authorization in agent endpoints

CVE-2026-6663 · Severity: medium · CVSS 4.8 · Published 2026-05-12

The GWD Connect plugin for WordPress, which is used to manage site backups and logs, contains a security flaw that could allow unauthorized individuals to run code on a website's server. This issue occurs on sites where the plugin has been installed but not yet fully configured with an API key. If exploited, an attacker could potentially take control of the website or access sensitive server data.

Technologies: Graphic Web Design Inc. Connect. Vendors: Graphic Web Design Inc..

Quick answers

Is CVE-2026-6663 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-6663 being exploited in the wild.
How severe is CVE-2026-6663?
Medium severity, with a CVSS score of 4.8, published 12 May 2026.
Which products and versions are affected?
Graphic Web Design Inc. Connect Up to and including 2.9.
Is there a fix for CVE-2026-6663?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-6663 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-6663?
Check whether you run Graphic Web Design Inc. Connect at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The GWD Connect plugin for WordPress is vulnerable to missing authorization in its standalone agent endpoints, gwd-backup.php and gwd-logs.php. This vulnerability exists because these endpoints fail to verify authentication when the API key is in its default, unconfigured state. An unauthenticated remote attacker can exploit this by sending a request with the update_agent action, which allows them to write arbitrary PHP code into the agent file. This results in remote code execution, although the attack is limited to unregistered installations in specific environments where these standalone files are accessible.

Affected products

  • Graphic Web Design Inc. GWD Connect Up to and including 2.9

Timeline

  • 2026-05-12: advisory: Initial disclosure by Wordfence and NVD publication.

References

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