CVE-2025-33008Network attack vector

Credential disclosure via embedded AS4 Web UI script

Published Aug 19, 2025 · Updated Aug 19, 2025

Cross-site scripting in the AS4 Web UI of IBM Sterling B2B Integrator and Sterling File Gateway 6.2.1.0 allows credential disclosure. The AS4 Web UI embeds authenticated-user input as arbitrary JavaScript without neutralizing it for browser rendering. An authenticated user must plant the script, and another user must interact with the affected content in a trusted session.

CVSS severity5.4
Medium
EPSS probability0.24%
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 the AS4 Web UI of IBM Sterling B2B Integrator and Sterling File Gateway 6.2.1.0 allows credential disclosure. The AS4 Web UI embeds authenticated-user input as arbitrary JavaScript without neutralizing it for browser rendering. An authenticated user must plant the script, and another user must interact with the affected content in a trusted session.

The record

CVE
CVE-2025-33008
Published
Aug 19, 2025
Updated
Aug 19, 2025
Vendor
IBM
Product
IBM Sterling File Gateway
Classifications
CWE-79, T1056.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 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=6.2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Sterling File Gatewayversion=6.2.1.0
IBM · IBM Sterling B2B Integratorversion=6.2.1.0

Published CVSS scores

5.4IBMCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1056.003Web Portal Capture

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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