EUVD-2026-73159
GHSA-vfp7-jcg3-jhw8
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Network-reachable, low-complexity SSRF requiring only authenticated low-priv access; scope changes because server pivots to internal resources beyond its own boundary.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
7DescriptionNVD
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
AnalysisAI
Server-side request forgery in Microsoft SharePoint Server Subscription Edition enables an authenticated low-privilege attacker to coerce the server into issuing arbitrary HTTP requests to internal or adjacent network resources, resulting in high-impact information disclosure. The CVSS scope-change flag (S:C) confirms that exploitation can expose resources beyond the SharePoint application boundary - including internal APIs, metadata services, or intranet hosts - making this a meaningful lateral-movement enabler despite its read-only impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege authenticated session on the affected SharePoint Server Subscription Edition instance (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.7 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) places this as a medium-high severity issue: exploitable over the network with low complexity by any authenticated SharePoint user, with no user interaction required and a scope change that elevates the confidentiality impact across system boundaries. … 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 vendor-released patch targeting Microsoft SharePoint Server Subscription Edition build 16.0.20326.20082 or later, available through the Microsoft Security Update Guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69683. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Microsoft SharePoint Server Subscription Edition deployments in your environment and verify current patch levels against the vendor advisory. …
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
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