EUVD-2026-84206
GHSA-v92q-v83r-rr2p
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable endpoint with low complexity, needs any authenticated account (PR:L), no UI; high confidentiality (PII harvest) but no integrity or availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
9DescriptionCVE.org
lamp-cloud through 5.10.0 contains an authorization bypass vulnerability in the getUserInfoById endpoint that allows authenticated users to read any other user's full profile. Attackers can iterate the userId parameter to harvest sensitive user information including mobile numbers, email addresses, national identity card numbers, and WeChat and DingTalk OpenIDs.
Articles & Coverage 1
AnalysisAI
Authenticated users on any Dromara lamp-cloud deployment up to and including 5.10.0 can read the complete profile of every other user by calling the getUserInfoById endpoint with an arbitrary userId, exposing mobile numbers, email addresses, national identity card numbers, and WeChat/DingTalk OpenIDs. The flaw is a classic object-level authorization bypass (CWE-639) requiring only a valid low-privileged account - no elevated role, user interaction, or non-default configuration - and publicly available exploit code exists (a Python BOLA PoC in the LinYuanyi1/cve-request-poc repository), so userIds can be enumerated at scale to harvest PII. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid low-privileged authenticated account on a lamp-cloud instance (PR:L); the attacker then invokes the getUserInfoById endpoint (UserInfoController) with an arbitrary userId. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a moderate, not urgent, priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch was identified at time of analysis, so the primary action is to track the dromara/lamp-cloud repository and the VulnCheck advisory at https://www.vulncheck.com/advisories/lamp-cloud-through-5.10.0-unauthorized-user-profile-access-via-getuserinfobyid for a fix, and to treat any commit referencing UserInfoController.java#L55-L61 as the relevant upstream change. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Dromara lamp-cloud deployments up to and including 5.10.0, restrict network access to the getUserInfoById endpoint via firewall or API gateway rules, and enable detailed logging to detect enumeration attempts. …
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External POC / Exploit Code
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