CVE-2020-2244: Jenkins Build Failure Analyzer Plugin 1.27.0 and earlier does not escape matching text in a form validation re

Q: How do I fix CVE-2020-2244?

build failure analyzer: upgrade to newer than 1.27.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-2244 being exploited?

CVE-2020-2244 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-2244 affect?

CVE-2020-2244 affects build failure analyzer. Severity is medium (CVSS 5.4). Jenkins Build Failure Analyzer Plugin 1.27.0 and earlier does not escape matching text in a form validation response, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers able to provide console output for builds

Q: How urgent is CVE-2020-2244?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2020-2244 is a medium-severity flaw (CVSS 5.4) affecting build failure analyzer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Jenkins Build Failure Analyzer Plugin 1.27.0 and earlier does not escape matching text in a form validation response, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers able to provide console output for builds used to test build log indications.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-09-01
Last modified	2026-06-17

Publisher (CNA): Jenkins Project · Vendor: jenkins

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-09-01 14:15 UTCPublished CVE record published
2026-06-17 03:12 UTCUpdated Record last modified

jenkins build failure analyzer UPGRADE

Affected: <= 1.27.0

Fixed in: newer than 1.27.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy build-failure-analyzer || rpm -q build-failure-analyzer || build-failure-analyzer --version

2. UPGRADE to newer than 1.27.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade build-failure-analyzer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade build-failure-analyzer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-2244?

build failure analyzer: upgrade to newer than 1.27.0. Exact commands for each OS are on this page.

Is CVE-2020-2244 being exploited?

CVE-2020-2244 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-2244 affect?

CVE-2020-2244 affects build failure analyzer. Severity is medium (CVSS 5.4). Jenkins Build Failure Analyzer Plugin 1.27.0 and earlier does not escape matching text in a form validation response, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers able to provide console output for builds

How urgent is CVE-2020-2244?

Priority 33/100. No elevated risk signals yet.

Software pages

Jenkins vulnerabilities

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References

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