EUVD-2026-88581
GHSA-q842-qqjh-38pv
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 requires a valid low-privilege account (PR:L); flaw only leaks customer PII, so C:H and I/A:N with no scope change.
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
Lifecycle Timeline
5DescriptionCVE.org
mall4j through 4.0 fails to enforce authorization checks on GET endpoints in UserAddrController that retrieve customer address data. Authenticated attackers can call /user/addr/page and /user/addr/info endpoints to harvest all customer addresses including names, phone numbers, and postal information.
AnalysisAI
Missing authorization checks in mall4j through 4.0 let any authenticated low-privilege account read the entire customer address book via the admin-side GET endpoints /user/addr/page and /user/addr/info in UserAddrController, exposing names, phone numbers and postal addresses. Exploitation requires only a valid, low-privileged login (PR:L) reachable over the network with no user interaction and no special configuration, and publicly available exploit code exists in a GitHub proof-of-concept repository. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated low-privilege account (PR:L) that can reach the admin-side UserAddrController GET endpoints /user/addr/page and /user/addr/info in mall4j through version 4.0; no user interaction and no special product configuration are needed once such an account exists. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a broken-function-level-authorization / missing-authorization flaw (CWE-862) rather than a memory-safety or code-execution bug, so the ceiling on impact is data exposure, not compromise. … 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 remediation must first be pursued with the upstream maintainers (https://github.com/gz-yami/mall4j) and tracked via the VulnCheck advisory at https://www.vulncheck.com/advisories/mall4j-through-4.0-missing-authorization-in-admin-user-address-endpoints; operators running a forked build should add an explicit server-side authorization check to the /user/addr/page and /user/addr/info handlers (for example a role/permission annotation or a programmatic admin-role assertion before the service call), since the current code path performs none. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all instances of mall4j version 4.0 or earlier in your environment and immediately restrict access to the vulnerable admin endpoints /user/addr/page and /user/addr/info using WAF rules, IP allowlisting, or temporarily disabling them if not business-critical; review logs for exploitation attempts and audit low-privilege accounts. …
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External POC / Exploit Code
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