CVE-2025-60511

Moodle OpenAI Chat Block plugin 3.0.1 (2025021700) suffers from an Insecure Direct Object Reference (IDOR) vulnerability due to insufficient validation of the blockId parameter in /blocks/openai_chat/api/completion.php. An authenticated student can impersonate another user's block (e.g., administrator) and send queries that are executed with that block's configuration. This can expose administrator-only Source of Truth entries, alter model behavior, and potentially misuse API resources.

CVSS v3.1

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.20% chance of exploitation in the next 30 days, 10th percentile

Published

2025-10-21

Updated

2026-07-05

Proof-of-concept exploits (1)

• https://onurcangenc.com.tr/posts/idor-in-moodle-openai-chat-block-block_openai_chat-proof…

References

• CVE Record
• NVD entry

Related

• CVE-2025-60500
• CVE-2025-60574
• CVE-2025-60458
• CVE-2025-6058
• CVE-2025-60357
• CVE-2025-60689