Unauthorized Password Management in WP Posts Password Batch Manager Plugin
CVE-2026-89283

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
11 October 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-89283?

The WP Posts Password Batch Manager plugin for WordPress versions up to 1.1 contains a significant flaw that allows attackers to exploit its bulk post-password feature. The plugin lacks essential capability and nonce checks, enabling unauthenticated users to reset or overwrite the passwords of all published posts. This vulnerability can lead to a complete exposure of password-protected content or potentially lock users out by setting arbitrary passwords on posts. As a result, sensitive content may become accessible to unauthorized individuals, or legitimate users may be unable to access their own information.

Affected Version(s)

WP Posts Password Batch Manager 0 <= 1.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Naoki Kawahigashi
WPScan
.