CVE-2025-64675Network attack vector

Spoofing via undisclosed cross-site scripting vector

Published Dec 18, 2025 · Updated Dec 18, 2025

Cross-site scripting in Microsoft Azure Cosmos DB allows remote attackers to spoof content over the network after user interaction. Microsoft identifies improper neutralization during web-page generation but does not disclose the affected interface, input field, rendering path, or whether the payload is stored or reflected. Exploitation requires no privileges but requires a victim to interact with attacker-controlled content; Microsoft reports spoofing without identifying the content that can be falsified.

CVSS severity8.3
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Microsoft Azure Cosmos DB allows remote attackers to spoof content over the network after user interaction. Microsoft identifies improper neutralization during web-page generation but does not disclose the affected interface, input field, rendering path, or whether the payload is stored or reflected. Exploitation requires no privileges but requires a victim to interact with attacker-controlled content; Microsoft reports spoofing without identifying the content that can be falsified.

The record

CVE
CVE-2025-64675
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
Microsoft
Product
Azure Cosmos DB
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure Cosmos DBversion=N/A

Published CVSS scores

9.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
8.3Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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