CVE-2026-16602 Content Protector (Passster) < 4.3.6 - Unauthenticated Non-Public Post Content Disclosure via Captcha REST Endpoint
Unauthenticated attackers can read draft, private, and pending post content via a REST endpoint if a captcha provider is configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16602?
CVE-2026-16602 is a high-severity vulnerability in Unknown Passster, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Passster WordPress plugin before 4.3.6 does not perform a post-status check before returning post content from an unauthenticated REST endpoint, allowing unauthenticated users to disclose the content of non-public (draft, private, and pending) posts on sites that have a captcha provider configured.
Weakness: CWE-200
Which versions are affected by CVE-2026-16602?
How do I fix CVE-2026-16602?
No fix has been published for CVE-2026-16602 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16602 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16602 exists.
Sources
Also known as GHSA-pg8g-xw7x-c8cp.