CVE-2025-60511Public exploitNetwork attack vector

Authenticated data disclosure via unchecked blockId

Published Oct 21, 2025 · Updated Oct 21, 2025

Authorization bypass in Moodle OpenAI Chat Block plugin 3.0.1 allows remote authenticated users to read administrator-only chat data. The completion.php endpoint accepts a user-controlled blockId and loads that block's prompts, Source of Truth entries, and model settings without verifying ownership. Student-level access and a valid chat block are required; substituting an administrator's block identifier exposes its generated responses and can consume its configured model resources.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Moodle OpenAI Chat Block plugin 3.0.1 allows remote authenticated users to read administrator-only chat data. The completion.php endpoint accepts a user-controlled blockId and loads that block's prompts, Source of Truth entries, and model settings without verifying ownership. Student-level access and a valid chat block are required; substituting an administrator's block identifier exposes its generated responses and can consume its configured model resources.

The record

CVE
CVE-2025-60511
Published
Oct 21, 2025
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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