EUVD-2026-56294
GHSA-27f9-rgrq-w67r
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Network-reachable path traversal requiring only low-privileged authentication (PR:L); impact is confined to high confidentiality loss (C:H) with no integrity or availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Relative path traversal in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
AnalysisAI
Relative path traversal in Microsoft SharePoint Server exposes arbitrary server-side files to any authenticated network user, with confirmed patches now available across all three affected product lines. The CVSS vector (AV:N/AC:L/PR:L/UI:N) indicates any valid SharePoint account holder can exploit this with low complexity and no victim interaction, resulting in high confidentiality impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privileged SharePoint account (PR:L per CVSS), meaning any standard authenticated user - employees, contractors, or external guests - can trigger the flaw without administrative or elevated roles. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.5 medium rating is appropriately calibrated. … 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 Microsoft's vendor-released patches immediately: upgrade SharePoint Server Subscription Edition to 16.0.19725.20522 or later, SharePoint Enterprise Server 2016 to 16.0.5565.1001 or later, and SharePoint Server 2019 to 16.0.10417.20198 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-23 – Relative Path Traversal
View allSame technique Path Traversal
View allShare
External POC / Exploit Code
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