CVE-2024-51636
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in Z.com byGMO GMO Social Connection gmo-social-connection allows Cross-Site Scripting (XSS).This issue affects GMO Social Connection: from n/a through <= 1.2.
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 · moderate confidenceA CSRF vulnerability in GMO Social Connection version 1.2 and below enables attackers to craft malicious requests that result in XSS attacks against users. The 7.1 CVSS score indicates significant impact, likely due to the XSS consequence allowing session hijacking or credential theft.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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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Confirm GMO Social Connection is installedLocate the application installation directory or check running services for 'GMO Social Connection' or related process names. On Linux, check /opt, /usr/local, or the application's home directory. On Windows, check Program Files or the application's designated folder.Affected if The application is present in the environment and is version 1.2 or below
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Identify the installed version numberCheck the version file in the application root (often named VERSION, version.txt, or visible in the admin interface). Run: ls -la in the application directory or look for a 'version' command if available. Also check package.json, composer.json, or similar dependency files if this is a web application.Affected if The version is 1.2 or any version below 1.2 (e.g., 1.1, 1.0, 0.x)
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Verify state-changing operations lack CSRF protectionInspect the application's forms and API endpoints that perform state changes (e.g., user profile updates, settings changes, data submissions). Examine the HTML source code or API request payloads for the presence of anti-CSRF tokens (often named 'csrf_token', '_token', 'nonce', or 'xsrf'). Check if SameSite cookie attributes are set on session cookies.Affected if State-changing endpoints do not include anti-CSRF tokens in requests or SameSite attributes are missing/weak on session cookies
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Test for reflected XSS in affected endpointsUse a browser developer tool or curl to submit crafted requests with XSS payloads (e.g., <script>alert(1)</script>) to state-changing endpoints identified in step 3. Observe if the payload is reflected unescaped in the response or if it gets stored and rendered without proper output encoding.Affected if XSS payloads are executed or reflected without encoding when submitted through the identified endpoints
The environment is affected if GMO Social Connection version 1.2 or below is installed AND state-changing operations lack anti-CSRF tokens AND XSS can be triggered through those endpoints.
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 anti-CSRF tokens and SameSite cookie attributes on state-changing operations, combined with output encoding and Content Security Policy headers to prevent the XSS impact.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-51636 — 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-2024-51636 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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