CVE-2026-90989 Tainacan < 1.4.0 - Subscriber+ Repository Staff Email Address Disclosure via Reports REST Endpoints
Authenticated subscribers can access staff email addresses via unrestricted REST endpoints in the Tainacan WordPress plugin.
- 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-2026-90989?
CVE-2026-90989 is a medium-severity vulnerability in Unknown Tainacan, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Tainacan WordPress plugin before 1.4.0 does not restrict its reports REST endpoints to users with a management capability, allowing any authenticated subscriber to read the email addresses of the repository's staff.
Weakness: CWE-200
Which versions are affected by CVE-2026-90989?
How do I fix CVE-2026-90989?
No fix has been published for CVE-2026-90989 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-90989 being exploited?
There is no known exploitation of CVE-2026-90989 in the wild and no public exploit code.
Sources
Also known as GHSA-wj3w-gf2c-jjrc.