EUVD-2026-60762
GHSA-9q66-w589-xv8x
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Unauthenticated network-reachable SaaS endpoint; impact confined strictly to confidentiality with no write or availability primitives confirmed.
Primary rating from Vendor (microsoft).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Command injection in Microsoft Copilot Web (copilot_web) enables unauthenticated remote attackers to exfiltrate sensitive data over the network by embedding malicious command elements in user-controlled input. The impact is strictly bounded to confidentiality - no integrity or availability loss - and a proof-of-concept is publicly available on GitHub. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required per CVSS PR:N - the attack targets Copilot Web as an unauthenticated, publicly accessible network service. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) positions this as an unauthenticated, low-complexity network-exploitable information disclosure with high confidentiality impact. … 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 | Microsoft has released a patch per the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24301. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Microsoft Copilot Web deployments across your environment and identify which systems or user populations have access to sensitive data through this service. …
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Same weakness CWE-77 – Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
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