EUVD-2026-81024
GHSA-9hmf-cxg8-mqx6
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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 REST endpoints, low complexity, any authenticated account (PR:L), no UI; high confidentiality and integrity from read/replace of out-of-scope records, low availability from deletion of attachments/comments.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
metasfresh DocumentAttachmentsRestController and CommentsRestController endpoints check only that callers are logged in without enforcing record-level permissions. Attackers can enumerate sequential document identifiers to read, replace, and delete attachments and comments on records their role cannot access.
AnalysisAI
Authenticated attackers holding any valid low-privilege role in metasfresh can read, replace, and delete attachments and comments belonging to records their role is not permitted to access. The DocumentAttachmentsRestController and CommentsRestController endpoints enforce only login state and never apply metasfresh's record-level (role/organization) permissions, so an attacker who enumerates sequential document identifiers can traverse records across access boundaries - an insecure direct object reference (CWE-639) rated 8.7 under CVSS 4.0 (CVSS 3.1 assessment: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated session with any valid low-privilege role on the metasfresh backend (PR:L) - the DocumentAttachmentsRestController and CommentsRestController enforce only login state, not record-level (row/role) permissions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine, elevated-priority authorization flaw, though not an emergency. … 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 in the available data at time of analysis; the upstream tracking issue at https://github.com/metasfresh/metasfresh/issues/24665 and the repository at https://github.com/metasfresh/metasfresh should be monitored for a fix commit or tagged release, and the VulnCheck advisory (https://www.vulncheck.com/advisories/metasfresh-unauthorized-access-via-document-attachments-and-comments-endpoints) should be watched for a remediation note. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, restrict network access to the DocumentAttachmentsRestController and CommentsRestController endpoints to trusted internal networks or VPN, and enforce multi-factor authentication for all metasfresh users; additionally, review access logs for sequential document identifier enumeration. …
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External POC / Exploit Code
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