What is CVE-2022-43426?

CVE-2022-43426 is a medium-severity vulnerability in Jenkins S3 Explorer, classified under Plaintext Storage of a Password. CVSS score: 5.3/10. Published 2022-10-19.

How severe is CVE-2022-43426?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Jenkins S3 Explorer

CVE-2022-43426

Jenkins S3 Explorer Plugin 1.0.8 and earlier does not mask the AWS_SECRET_ACCESS_KEY form field, increasing the potential for attackers to observe and capture it.

Published 2022-10-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000

Affected products

Jenkins S3 Explorer
Jenkins Project S3 Explorer Plugin — versions unspecified, next of 1.0.8

Weakness classification (CWE)

CWE-256 — Plaintext Storage of a Password

References

www.jenkins.io/security/advisory/2022-10-19/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2022/10/19/3 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-43426?: CVE-2022-43426 is a medium-severity vulnerability in Jenkins S3 Explorer, classified under Plaintext Storage of a Password. CVSS score: 5.3/10. Published 2022-10-19.
How severe is CVE-2022-43426?: Medium severity. CVSS v3 base score is 5.3 out of 10.