CVE-2026-93767 Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary File Read via 'guid' Parameter
Authenticated attackers can read arbitrary server files via path traversal in the Tainacan WordPress plugin when a specific directory is missing.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-93767?
CVE-2026-93767 is a medium-severity path traversal vulnerability in Tainacan, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'guid' parameter parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. This vulnerability is exploitable only when the uploads/tainacan directory does not exist on the server, as this condition causes realpath() to return false, collapsing the base path to an empty string and rendering the containment check ineffective.
Weakness: CWE-22
Which versions are affected by CVE-2026-93767?
How do I fix CVE-2026-93767?
No fix has been published for CVE-2026-93767 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-93767 being exploited?
There is no known exploitation of CVE-2026-93767 in the wild and no public exploit code.
Sources
Also known as GHSA-9q7f-9qf7-62pg.