EUVD-2026-42158
GHSA-mmvx-rq8p-h6g9
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Unauthenticated network endpoint (AV:N/AC:L/PR:N/UI:N) leaks high-value secrets giving C:H; no direct integrity/availability impact, and Scope kept Unchanged conservatively despite downstream WeChat-account risk.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
An 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
AnalysisAI
Sensitive information disclosure in OneBlog V2.3.9 lets remote unauthenticated attackers retrieve WeChat Official Account secrets - the access_token and jsapi_ticket - through unprotected REST endpoints backed by RestApiController.java, JsApiTicketComponent.java, and GetAccessTokenComponent.java. Because these credentials grant control over the linked WeChat public account, disclosure enables account takeover of the integration rather than just data leakage. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target run OneBlog V2.3.9 with the WeChat Official Account integration configured and active (valid appid/secret so GetAccessTokenComponent and JsApiTicketComponent actually return live tokens), and that the RestApiController endpoints be network-reachable by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, base 7.5) is internally consistent with the description: a network-reachable endpoint requiring no privileges or user interaction, yielding high confidentiality impact and no integrity/availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker discovers a public OneBlog V2.3.9 instance and sends an unauthenticated HTTP GET to the WeChat REST endpoint, which returns the account's access_token and jsapi_ticket. Using the stolen access_token, the attacker then invokes WeChat Official Account APIs to impersonate the account, push messages, or scrape user data. … |
| Remediation | No vendor-released patch version is identified at time of analysis; tracking is via the upstream issue https://github.com/zhangyd-c/OneBlog/issues/43, so monitor that issue and the OneBlog repository for a fixed release and upgrade as soon as one is published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all OneBlog V2.3.9 deployments in production; immediately rotate WeChat access_token and jsapi_ticket credentials; restrict network access to exposed RestApiController endpoints via firewall rules. …
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External POC / Exploit Code
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