CVE-2025-0740
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn Improper Access Control vulnerability has been found in EmbedAI 2.1 and below. This vulnerability allows an authenticated attacker to obtain chat messages belonging to other users by changing the “CHAT_ID” of the endpoint "/embedai/chats/load_messages?chat_id=<CHAT_ID>".
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is an Insecure Direct Object Reference (IDOR) vulnerability where the /embedai/chats/load_messages endpoint fails to verify that the authenticated user owns or has permission to access the requested chat_id. An attacker with a valid account can read other users' chat messages by simply changing the CHAT_ID parameter in the request.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check the installed version of Thesamur EmbedaiLocate the version file, package.json, or application metadata where the version is recorded. Compare it to the affected version range (anything below 2.1).Affected if The installed version is Thesamur Embedai below version 2.1
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Identify the load_messages endpoint in the codebaseSearch the application source code for the /embedai/chats/load_messages endpoint handler. Look for the function that processes requests to this route.Affected if The endpoint exists in the application and handles chat_id parameters
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Review authorization logic in load_messagesExamine the endpoint handler code to determine if it verifies that the authenticated user owns or has permission to access the requested chat_id before returning messages. Look for user ownership checks on the chat object.Affected if The endpoint lacks or has incomplete ownership verification logic for the chat_id parameter
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Check authentication versus authorization implementationReview the code to confirm whether the endpoint only verifies the user is authenticated (logged in) versus verifying the user is authorized to access the specific chat_id being requested.Affected if The endpoint only checks authentication without validating chat ownership
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Test for IDOR with secondary test account (if environment permits)Create or use two distinct user accounts. As User A, capture a valid chat_id from your session. As User B, attempt to access that same chat_id via the /embedai/chats/load_messages endpoint by changing only the chat_id parameter in the request.Affected if User B can successfully retrieve User A's chat messages by manipulating the chat_id parameter
You are affected if running Thesamur Embedai version below 2.1 and the load_messages endpoint does not verify that the authenticated user owns the requested chat_id before returning messages.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped2.1
Implement proper authorization checks ensuring the authenticated user owns the requested chat_id before returning messages, and validate all object references across similar endpoints.
EmbedAI version 2.1 or later
- Upgrade EmbedAI to version 2.1 or later to resolve the improper access control vulnerability
- After upgrading, verify that users can only access their own chat messages through the /embedai/chats/load_messages endpoint
- Test that manipulating the chat_id parameter to access other users' messages is no longer possible
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-0740 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-0740 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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