CVE-2026-51937
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 issue in Oneblog V2.3.9 allows a remote attacker to obtain sensitive information via the RestApiController.java, JsApiTicketComponent.java, and the GetAccessTokenComponent.java component
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 confidenceOneblog v2.3.9 contains an information disclosure vulnerability where RestApiController.java, JsApiTicketComponent.java, and GetAccessTokenComponent.java expose sensitive information to unauthenticated remote attackers. The components suggest improper access controls on API endpoints that leak access tokens and JS API tickets used for WeChat integration.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Confirm Oneblog installation and versionLocate the Oneblog application (common paths: /webapps/oneblog, /opt/oneblog, or search for oneblog*.jar/war). Check version file (version.properties, pom.xml, or build info) or inspect the WAR/JAR manifest for version 2.3.9.Affected if Oneblog version is 2.3.9 or if version cannot be determined but the application is present.
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Identify vulnerable Java componentsSearch for the following files in the deployed application: RestApiController.java (compiled as RestApiController.class), JsApiTicketComponent.java, and GetAccessTokenComponent.java. These are typically under WEB-INF/classes or in the JAR/WAR structure.Affected if Any of these three component files are present in the deployment.
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Check API endpoint exposureIdentify the base URL for Oneblog API endpoints (typically /api/ or /open/ prefix). Use curl or a browser to access common patterns: /api/rest/*, /api/jsapi/ticket, /api/access/token without providing authentication credentials.Affected if These API endpoints respond with HTTP 200 without requiring authentication.
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Verify sensitive data leakageSend unauthenticated requests to the suspected endpoints and inspect responses. Look for JSON fields containing access_token, jsapi_ticket, or similar WeChat-related credentials in the response body.Affected if API responses contain access tokens, JS API tickets, or other WeChat credentials without authentication.
A user is affected if Oneblog version 2.3.9 is running and the API endpoints for RestApiController, JsApiTicketComponent, or GetAccessTokenComponent are accessible without authentication and return sensitive WeChat tokens.
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 dataRestrict access to the affected API endpoints by implementing proper authentication and authorization checks. Ensure sensitive tokens, tickets, and credentials are not returned in API responses without validation.
- Consultation3.0 h
- Implementation6.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-51937 — 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-2026-51937 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
- No spam, self-promotion, credentials, or personal data