CVE-2026-16602

Content Protector (Passster) < 4.3.6 - Unauthenticated Non-Public Post Content Disclosure via Captcha REST Endpoint

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.

Affected

Passster

CVSS v3.1 CNA

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2026-08-05

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/fcca0d1c-1a5b-4515-8182-d68f0759b978/

References

• CVE Record
• NVD entry