EUVD-2026-84209
GHSA-ch7p-78m2-fq4j
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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, low complexity, requires a low-privilege authenticated account (PR:L), no UI; integrity-high from permanent unauthorized deletion, no confidentiality, limited availability.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
lamp-cloud through 5.10.0 contains an authorization bypass vulnerability in the deleteMyNotice endpoint that allows authenticated users to delete other users' notifications. Attackers can call the DELETE /anyone/extendNotice/deleteMyNotice endpoint with arbitrary notice IDs to permanently remove notifications belonging to other users without recipient validation.
Articles & Coverage 1
AnalysisAI
Authenticated users of lamp-cloud (dromara/lamp-cloud) through version 5.10.0 can permanently delete notifications belonging to other users by calling DELETE /anyone/extendNotice/deleteMyNotice with arbitrary notice IDs, because the endpoint deletes by the attacker-supplied key without verifying that the notice belongs to the requester. Any low-privilege account with network access to the application is sufficient - no administrative role and no user interaction are required (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) - and because notice IDs appear to be sequential/enumerable, a single authenticated user can systematically purge the notification records of other tenants/users. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated account on the target lamp-cloud instance (any low-privilege user suffices - PR:L); no admin role and no user interaction are needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but bounded-severity issue. … 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; the only upstream references are the affected implementation source (https://github.com/dromara/lamp-cloud/blob/bdc1a406eb0f6291e9f6dbad9cbccd67bc6a37b6/lamp-base/lamp-base-biz/src/main/java/top/tangyh/lamp/msg/service/impl/ExtendNoticeServiceImpl.java#L45-L63) and the VulnCheck advisory (https://www.vulncheck.com/advisories/lamp-cloud-through-5.10.0-unauthorized-notification-deletion), neither of which points to a fixed release tag or commit. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm whether lamp-cloud (dromara/lamp-cloud) through 5.10.0 is exposed to untrusted users, block or closely monitor DELETE /anyone/extendNotice/deleteMyNotice at the WAF/reverse proxy/API gateway, restrict network access to the application, and review logs for sequential notice ID deletion or cross-tenant deletion attempts; because publicly available exploit code exists and no vendor-released patch is identified, treat any authenticated low-privilege account as a potential vector. …
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External POC / Exploit Code
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