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CVE-2023-40342

19
FAUCET Score

CVE-2023-40342 describes a stored cross-site scripting (XSS) vulnerability in Jenkins Flaky Test Handler Plugin versions 1.2.2 and earlier. This flaw allows authenticated attackers to inject malicious scripts into the Jenkins UI by manipulating JUnit report file contents, as the plugin fails to properly escape these contents. With a CVSS score of 5.4 (Medium), the vulnerability requires low privileges and user interaction, potentially leading to limited impact on confidentiality and integrity. While there is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.2CPE matchmatch criteria
cpe:2.3:a:jenkins:flaky_test_handler:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 64th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:flaky-test-handlerFixed in: 1.2.3
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

mavenGHSA-hv48-hgp6-xpqfhigh

Jenkins Flaky Test Handler Plugin stored cross-site scripting vulnerability

Aug 16, 2023

References

jenkins.io / security/advisory/2023-08-16
Vendor Advisory
openwall.com / lists/oss-security/2023/08/16/3
Mailing ListThird Party Advisory