Vulnerabilities / Postie / WPSEC-2026-1627
Postie <= 1.9.87 - Unauthenticated Sensitive Information Exposure via Debug Output
Medium 5.9
CWE-200Fixed in 1.9.88
- ID
- WPSEC-2026-1627
- Plugin
- Postie (postie)
- Affected
- from 1.9.77 before 1.9.88
- Remediation
- Update to 1.9.88 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness
- CWE-200
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-25
- Attack surface
- Postie on WPSec AttackSurface
- Fix released
- Published
Description
The Postie plugin for WordPress is vulnerable to Sensitive Information Exposure in versions 1.9.77 up to, and including, 1.9.87 via the mail check endpoint (?postie=get-mail). This is due to the plugin printing its full configuration, including the mailbox password, in debug output that is returned in the HTTP response; the code intended to remove the password before the dump has no effect on the settings object. This makes it possible for unauthenticated attackers to obtain the credentials of the mailbox Postie reads from on sites where Postie's debug logging is enabled.
References
- https://wpsec.com/vuln/WPSEC-2026-1627/
- https://plugins.svn.wordpress.org/postie/tags/1.9.88/
- https://wordpress.org/plugins/postie/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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