Vulnerabilities / Better Messages / WPSEC-2026-1116
Better Messages <= 3.0.14 - Authenticated (Subscriber+) Sensitive Information Exposure via 'reply_to' Message Meta in AI Chat Bot Conversations
Low 3.1
CWE-639Fixed in 3.1.0
- ID
- WPSEC-2026-1116
- Plugin
- Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots (bp-better-messages)
- Affected
- all versions before 3.1.0
- Remediation
- Update to 3.1.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-639
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-16
- Attack surface
- Better Messages on WPSec AttackSurface
- Fix released
- Published
Description
The Better Messages plugin for WordPress is vulnerable to Sensitive Information Exposure via the 'reply_to' message meta in all versions up to, and including, 3.0.14. This is due to the plugin not checking that a replied-to message belongs to the same conversation, while the AI chat bot reply context loads the replied-to message by ID and adds its text and attachments to the bot prompt. This makes it possible for authenticated attackers with Subscriber-level access or above who can message an AI chat bot to get the bot to reveal the content of messages from conversations they do not belong to.
References
- https://wpsec.com/vuln/WPSEC-2026-1116/
- https://plugins.svn.wordpress.org/bp-better-messages/tags/3.1.0/
- https://wordpress.org/plugins/bp-better-messages/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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