CVE-2019-4271

3.5 LOW 0.8% exploit odds Fix listed

What it is

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 Admin console is vulnerable to a Client-side HTTP parameter pollution vulnerability. IBM X-Force ID: 160243.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.
Exploit odds: 0.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2019-09-17 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:36 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.8% in the next 30 days (EPSS).
Severity: 3.5 LOW (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2019-09-17 19:15 UTC
Last modified: 2026-06-17 02:36 UTC
Exploit probability: 0.8% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

IBM Websphere Application Server ≤ 8.5.5.15
IBM Websphere Application Server ≤ 9.0.0.11
IBM Websphere Application Server 7.0.0.0

Attack profile CVSS 3.1 · 3.5

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-4271.md and follow it. Check whether this project is affected by CVE-2019-4271. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record