EUVD-2026-73695
GHSA-4w3q-g25g-r489
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Authenticated low-privilege user exploits over-privileged network-accessible SharePoint endpoint; no integrity or availability impact, only confidentiality breach.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
AnalysisAI
Information disclosure in Microsoft SharePoint Server Subscription Edition allows a low-privileged authenticated attacker to read sensitive data over the network by leveraging a SharePoint component that executes with unnecessary elevated privileges (CWE-250). The CVSS vector (AV:N/AC:L/PR:L/UI:N/C:H) reflects a straightforward network-accessible exploit requiring only basic user credentials, with no user interaction and high confidentiality impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated session with at least low-level privileges (PR:L) in the SharePoint Server Subscription Edition environment - anonymous/unauthenticated access is not sufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 (Medium) appropriately reflects the limited scope: exploitation requires valid credentials (PR:L), no scope change occurs (S:U), and only confidentiality is affected (C:H/I:N/A:N). … 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 | Apply the Microsoft-released patch that brings SharePoint Server Subscription Edition to version 16.0.20326.20090 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-250 – Execution with Unnecessary Privileges
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
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