CVE-2026-119048 | Severity.io

Description

JeeSite 5.11.0 through 5.19.1 contains an insecure direct object reference vulnerability in the AI CMS chat module that allows authenticated users to access other users' conversations due to missing and reversed ownership checks. Attackers who know or derive a victim's conversation id can call /a/cms/chat/message, /a/cms/chat/delete, or /a/cms/chat/completions to read, delete, or append to the victim's AI chat transcripts.

Related CPE's

Could not find any relations

References

https://github.com/thinkgem/jeesite5

https://github.com/thinkgem/jeesite5/blob/5b5e2cf0adc45a1abe33d0f4ca149590d149b82d/modules/ai/ai-cms/src/main/java/com/jeesite/modules/ai/cms/service/AiCmsChatService.java#L111-L116

https://github.com/thinkgem/jeesite5/blob/5b5e2cf0adc45a1abe33d0f4ca149590d149b82d/modules/ai/ai-cms/src/main/java/com/jeesite/modules/ai/cms/service/CacheChatMemoryRepository.java#L59-L62

https://github.com/thinkgem/jeesite5/commit/cbc5ba7a37fd93f38c46ef656bd31442fe6f8015

https://github.com/thinkgem/jeesite5/issues/43

https://hackmd.io/@hieund/jeesite5-ai-cms-chat-conversation-idor

https://www.vulncheck.com/advisories/jeesite-5.11.0-through-5.19.1-idor-in-ai-cms-chat-module

Weaknesses

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