CVE-2021-24881: Passster Project Passter

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

The Passster WordPress plugin before 3.5.5.9 does not properly check for password, as well as that the post to be viewed is public, allowing unauthenticated users to bypass the protection offered by the plugin, and access arbitrary posts (such as private) content, by sending a specifically crafted request.

Affected products

• Passster Project Passter: before 3.5.5.9 (fixed in 3.5.5.9)

Published 2023-01-23. Last modified 2026-06-17.