CVE-2026-9710 Themeco Cornerstone < 7.8.8 (Premium, bundled with X Theme) - Subscriber+ Arbitrary User Password Hash Disclosure
Authenticated users can disclose sensitive metadata including password hashes due to missing capability checks in the Cornerstone 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-2026-9710?
CVE-2026-9710 is a high-severity vulnerability in Unknown Cornerstone, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Cornerstone WordPress plugin before 7.8.8 does not enforce capability checks on one of its CSS-preview request handlers, and exposes the nonce needed to call it to every logged-in user on any wp-admin page, allowing any authenticated user to evaluate dynamic content tokens against arbitrary users and disclose their sensitive metadata including raw password hashes. This affects the premium co Cornerstone page builder distributed bundled with the X , not the unrelated free `cornerstone` Cornerstone WordPress plugin before 7.8.8 (v0.8.x) on the .org repository.
Which versions are affected by CVE-2026-9710?
How do I fix CVE-2026-9710?
No fix has been published for CVE-2026-9710 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9710 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9710 exists.
Sources
Also known as GHSA-w2v5-gfq2-4h2f.