CVE-2020-4828

IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 is vulnerable to web...

6.5 Medium

IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 is vulnerable to web cache poisoning, caused by improper input validation by modifying HTTP request headers. IBM X-Force ID: 189842.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.82%Down 4.2 points since Apr 14, 2021

What each source reports

CVE List Score used 6.5

Record: CVE-2020-4828
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/C:L/PR:N/UI:N/AC:L/I:L/A:N/S:U/RC:C/RL:O/E:U
Updated: 2026-11-02

EUVDEUVD-2020-26075 6.5

Record: EUVD-2020-26075
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/C:L/PR:N/UI:N/AC:L/I:L/A:N/S:U/RC:C/RL:O/E:U
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mc75-95xp-qm8h No score

IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 is vulnerable to web...

Record: GHSA-mc75-95xp-qm8h
Weakness: CWE-20
Updated: 2026-11-02

NVD 6.5

Record: CVE-2020-4828
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:P/I:P/A:N
Weakness: CWE-20
Updated: 2026-11-02

Affected products

ibm api connect

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-4828 is a medium vulnerability (CVSS 6.5) in Ibm Api Connect, published February 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.82%, the 57th percentile. No source names a fixed version.