CVE-2023-24842
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 · uneditedHGiga MailSherlock has vulnerability of insufficient access control. An unauthenticated remote user can exploit this vulnerability to access partial content of another user’s mail by changing user ID and mail ID within URL.
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 confidenceHGiga MailSherlock contains an Insecure Direct Object Reference (IDOR) vulnerability allowing unauthenticated attackers to access arbitrary users' email content by manipulating user ID and mail ID parameters in the URL. No authentication or session validation is enforced on these requests.
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= 4.5CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.
-
Confirm Hgiga Oaklouds Mailsherlock versionLocate the installed version of Hgiga Oaklouds Mailsherlock by checking the application's about page, system registry, installed programs list, or product-specific configuration files. Compare against the affected version 4.5.Affected if The installed version is Hgiga Oaklouds Mailsherlock version 4.5
-
Identify mail-related web endpointsExamine the web server configuration, application routing tables, or proxy logs to find URL patterns used for accessing email content. Look for endpoints containing parameters related to user ID or mail ID.Affected if Mail access endpoints with user ID and mail ID parameters exist and are accessible over the network
-
Verify unauthenticated access is possibleSend a request to the identified mail endpoints without providing any authentication credentials, session cookies, or authorization headers. Observe whether the application returns email content or authentication prompts.Affected if The application returns email content or accepts requests without requiring authentication
-
Test authorization on mail resourcesAttempt to access email resources by manipulating user ID or mail ID parameters in the URL to reference different users or messages. Check if the application validates that the requesting user owns or has permission to access the requested resource.Affected if The application allows access to arbitrary users' email content without proper ownership verification
The environment is affected if running Hgiga Oaklouds Mailsherlock version 4.5 and mail access endpoints are accessible without requiring authentication or validating user permissions.
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 dataImplement proper server-side authorization checks to verify the requesting user owns or has permission to access the requested mail resource before returning content. Add authentication requirements for all mail access endpoints.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-24842 — 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-2023-24842 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data