CVE-2024-7902
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 · uneditedA vulnerability was found in pkp ojs up to 3.4.0-6 and classified as problematic. Affected by this issue is some unknown functionality of the file /login/signOut. The manipulation of the argument source with the input .example.com leads to open redirect. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceAn open redirect vulnerability exists in PKP OJS /login/signOut endpoint. The source parameter is not properly validated, allowing attackers to supply malicious values like '.example.com' that redirect users to external malicious sites. This is a network-exploitable issue with publicly available exploit information.
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<= 3.4.0-6CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Identify OJS versionLocate the version file or configuration (e.g., check docs or admin panel for version number)Affected if installed version is 3.4.0-6 or lower
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Verify /login/signOut endpoint existsAccess the /login/signOut path on your server (e.g., https://yourdomain.com/login/signOut)Affected if the endpoint responds and is accessible
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Test source parameter for open redirectSend a request to /login/signOut with source parameter set to an external domain (e.g., ?source=.example.com) and observe if the response includes a Location header redirecting to that external domainAffected if the application redirects to the external domain specified in the source parameter instead of rejecting it
Your environment is affected if you run OJS version 3.4.0-6 or lower and the /login/signOut endpoint accepts external domains in the source parameter.
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 strict validation on the source parameter to only allow relative paths or a whitelist of trusted internal domains. Reject any values containing external domain patterns or suspicious characters.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-7902 — 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-2024-7902 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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