CVE-2023-39422
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 · uneditedThe /irmdata/api/ endpoints exposed by the IRM Next Generation booking engine authenticates requests using HMAC tokens. These tokens are however exposed in a JavaScript file loaded on the client side, thus rendering this extra safety mechanism useless.
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 confidenceThe IRM Next Generation booking engine's /irmdata/api/ endpoints rely on HMAC token authentication, but these tokens are hardcoded and exposed in client-side JavaScript files. An attacker can simply extract these tokens from the JavaScript and use them to authenticate to the API, completely bypassing the intended HMAC security mechanism.
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 dataall versionsCVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Identify IRM Next Generation installationLocate the Resortdata Internet Reservation Module Next Generation booking engine in your environment. Check web application directories, server configurations, or installed software lists for this product.Affected if The product is installed and running
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Locate client-side JavaScript filesAccess the application's web root and enumerate all .js files, particularly those served to clients. Look in common directories such as /js/, /scripts/, or the root web directory.Affected if JavaScript files exist in the application web directory
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Search JavaScript for hardcoded tokensInspect each JavaScript file for hardcoded strings that resemble HMAC tokens or API keys. Search for patterns like 'token', 'hmac', 'key', 'secret', or authentication-related strings. Extract any credentials found.Affected if Hardcoded authentication tokens or credentials are present in client-side JavaScript files
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Verify API endpoint accessibilityAttempt to access or enumerate the /irmdata/api/ endpoints to confirm they are exposed and require HMAC token authentication for access.Affected if The /irmdata/api/ endpoints are publicly or internally accessible and respond to requests
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Test token validityUse any tokens extracted from JavaScript files to make authenticated requests to the /irmdata/api/ endpoints. Compare the responses to unauthenticated requests to determine if the tokens grant access.Affected if Tokens extracted from JavaScript successfully authenticate to the API, confirming the hardcoded tokens are valid and active
If you have IRM Next Generation deployed and hardcoded HMAC tokens are present in client-side JavaScript files that successfully authenticate to /irmdata/api/ endpoints, your environment is affected by this vulnerability.
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.
From vendor dataRemove hardcoded HMAC tokens from client-side JavaScript and implement proper server-side authentication (such as session-based auth, OAuth, or server-managed API keys). Rotate any exposed credentials immediately.
- Consultation8.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-39422 — 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-2023-39422 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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