CVE-2022-39163Network attack vector

Cross-site scripting via client-side connection desynchronization

Published Mar 26, 2025 · Updated Aug 15, 2025

Client-side desync in IBM Cognos Controller 11.0.0 through 11.0.1 and IBM Controller 11.1.0 allows remote attackers to trigger XSS. The HTTP handling permits a browser and server to disagree about response boundaries, but IBM has not disclosed the responsible parser or operation. Exploitation is remote and unauthenticated but requires user interaction; successful desynchronization can run script in the affected browser context.

CVSS severity4.7
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Client-side desync in IBM Cognos Controller 11.0.0 through 11.0.1 and IBM Controller 11.1.0 allows remote attackers to trigger XSS. The HTTP handling permits a browser and server to disagree about response boundaries, but IBM has not disclosed the responsible parser or operation. Exploitation is remote and unauthenticated but requires user interaction; successful desynchronization can run script in the affected browser context.

The record

CVE
CVE-2022-39163
Published
Mar 26, 2025
Updated
Aug 15, 2025
Vendor
IBM
Product
IBM Controller
Classifications
CWE-444
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=11.0.0 <=11.0.1
  2. Affected versionversion=11.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Controllerversion=11.0.0 <=11.0.1; version=11.1.0

Published CVSS scores

4.7IBMCVSS:3.1/AV:N/AC:H/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.

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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-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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