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CVE-2026-89093

5.3 Moyenne

Publiée le 19/09/2026 à 05:17 · Modifiée le 21/09/2026 à 15:33 · Analyse NVD reportée · Source : security@wordfence.com

Description

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Information Exposure by Spoofing in all versions up to, and including, 2.15.33. This is due to the `is_ai_bot_user()` function identifying privileged internal AI bot accounts by performing a prefix check for `'ai-chat-bot-'` against a guest record's stored IP address, which is populated verbatim from the client-controlled `X-Real-IP` request header during unauthenticated guest registration. This makes it possible for unauthenticated attackers to register a guest identity that the plugin treats as its own internal AI bot, bypassing the per-room role allowlist, draft-status check, and join filters — which are all short-circuited by the bot check in `user_can_join()` and `user_can_read()` — to join administrator-restricted chat rooms, post messages into them, and read the private message history of other users.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 5.3 Moyenne security@wordfence.com CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Faiblesses (CWE)

Références

Ailleurs