CVE-2019-4595Network attack vector

Phishing via unvalidated user-interface redirect

Published Feb 24, 2020 · Updated Sep 16, 2024

Open redirect in IBM Sterling B2B Integrator 5.2.0.0 through 6.0.3.0 allows remote authenticated users to redirect victims to phishing sites. IBM identifies the User Interface as the affected component but does not disclose the endpoint, parameter, or validation failure that accepts an attacker-controlled destination. A low-privilege account and victim interaction are required; a crafted trusted-looking link sends the victim to an attacker-controlled site, enabling credential theft.

CVSS severity6.8
Medium
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

Open redirect in IBM Sterling B2B Integrator 5.2.0.0 through 6.0.3.0 allows remote authenticated users to redirect victims to phishing sites. IBM identifies the User Interface as the affected component but does not disclose the endpoint, parameter, or validation failure that accepts an attacker-controlled destination. A low-privilege account and victim interaction are required; a crafted trusted-looking link sends the victim to an attacker-controlled site, enabling credential theft.

The record

CVE
CVE-2019-4595
Published
Feb 24, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Sterling B2B Integrator
Classifications
CWE-601, T1204.001, T1566.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record 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=5.2.0.0
  2. Affected versionversion=5.2.6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Sterling B2B Integratorversion=5.2.0.0; version=5.2.6.5

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.8IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/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-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001Malicious Link
T1566.002Spearphishing Link

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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