EUVD-2026-56582
GHSA-3h89-9mrm-gjxw
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSRF enabling privilege escalation into internal services argues for S:C (changed scope); all other metrics align with the provided vector.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Server-side request forgery in Microsoft Office SharePoint enables low-privileged authenticated attackers to escalate privileges with no user interaction required, achieving high confidentiality, integrity, and availability impact. The flaw (CWE-918) allows a legitimate but low-privilege account holder to forge server-side HTTP requests, likely reaching internal administrative interfaces or credential endpoints inaccessible from the network perimeter. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a valid low-privilege account on the target Microsoft Office SharePoint instance (consistent with PR:L in the CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 score is well-supported by the vector: network-accessible, low complexity, low privilege required, and no user interaction places this firmly in the tier that should be patched promptly rather than triaged away. … 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 | The primary remediation is to apply the patch issued by Microsoft, detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70324. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Microsoft Office SharePoint deployments in your environment, document versions and integrated systems, and audit which user groups present SSRF risk vectors. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
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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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