CVE-2025-36248Network attack vector

Credential disclosure via unauthenticated Web UI script injection

Published Sep 19, 2025 · Updated Sep 19, 2025

Cross-site scripting in IBM Copy Services Manager 6.3.13 allows remote attackers to execute JavaScript in the Web UI. The published record does not identify the injectable field or output-encoding failure; IBM's mitigation changes the csmsessionid cookie from SameSite=Lax to SameSite=Strict. Exploitation is unauthenticated but requires a user to load the injected content, which can disclose credentials and alter Web UI behavior within that user's trusted session.

CVSS severity6.1
Medium
EPSS probability0.21%
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 IBM Copy Services Manager 6.3.13 allows remote attackers to execute JavaScript in the Web UI. The published record does not identify the injectable field or output-encoding failure; IBM's mitigation changes the csmsessionid cookie from SameSite=Lax to SameSite=Strict. Exploitation is unauthenticated but requires a user to load the injected content, which can disclose credentials and alter Web UI behavior within that user's trusted session.

The record

CVE
CVE-2025-36248
Published
Sep 19, 2025
Updated
Sep 19, 2025
Vendor
IBM
Product
Copy Services Manager
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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=6.3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Copy Services Managerversion=6.3.13

Published CVSS scores

6.1IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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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