CVE-2026-16602

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductPassster
PublishedAug 5, 2026
First seenAug 5, 2026

How to fix

Update
  • Passster4.3.6 or later

Affected products

ProductAffected versionsFixed in
Passsterv < 4.3.64.3.6

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Choose the product and enter the version you run to see whether it falls in the affected range.

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