CVE-2026-16602: CWE-200 Information Exposure in Passster
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.
AI Analysis
Technical Summary
CVE-2026-16602 describes an information exposure vulnerability (CWE-200) in the Passster WordPress plugin prior to version 4.3.6. The flaw arises because the plugin fails to perform a post-status check when responding to requests on an unauthenticated REST endpoint. Consequently, unauthorized users can retrieve the content of non-public posts (draft, private, pending) if the site has a captcha provider configured. This exposure could lead to unintended disclosure of sensitive or unpublished content.
Potential Impact
Unauthenticated attackers can access the content of non-public posts on affected WordPress sites using the Passster plugin before 4.3.6. This compromises confidentiality by exposing draft, private, or pending posts that should not be publicly accessible. There is no indication of further impact such as code execution or privilege escalation.
Mitigation Recommendations
No official patch or remediation guidance is currently provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the REST endpoint or disabling the captcha provider configuration that triggers this exposure.
CVE-2026-16602: CWE-200 Information Exposure in Passster
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.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16602 describes an information exposure vulnerability (CWE-200) in the Passster WordPress plugin prior to version 4.3.6. The flaw arises because the plugin fails to perform a post-status check when responding to requests on an unauthenticated REST endpoint. Consequently, unauthorized users can retrieve the content of non-public posts (draft, private, pending) if the site has a captcha provider configured. This exposure could lead to unintended disclosure of sensitive or unpublished content.
Potential Impact
Unauthenticated attackers can access the content of non-public posts on affected WordPress sites using the Passster plugin before 4.3.6. This compromises confidentiality by exposing draft, private, or pending posts that should not be publicly accessible. There is no indication of further impact such as code execution or privilege escalation.
Mitigation Recommendations
No official patch or remediation guidance is currently provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the REST endpoint or disabling the captcha provider configuration that triggers this exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-22T14:20:48.572Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72d7aebf8831d5395e82b0
Added to database: 08/05/2026, 06:26:54 UTC
Last enriched: 08/05/2026, 07:02:22 UTC
Last updated: 08/06/2026, 00:41:11 UTC
Views: 2
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