CVE-2023-43499

Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier does not escape Failure Cause names in build logs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create or update Failure Causes.

Published: 2023-09-20 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-43499 is rated Low Risk (31.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.52%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-43499

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 4.32% 0.52% -3.80%
2 2026-01-31 4.11% 4.32% +0.21%
3 2026-01-02 — 4.11% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-43499

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 2.7 [email protected]

Weakness enumeration for CVE-2023-43499

GitHub Security Advisory for CVE-2023-43499

GHSA-262f-77q5-rqv6 · Severity: high · Ecosystem: maven — Jenkins Build Failure Analyzer Plugin Cross-site Scripting vulnerability

Affected software / configurations for CVE-2023-43499

Vendor Product Version Raw CPE
jenkins build_failure_analyzer < 2.4.2 cpe:2.3:a:jenkins:build_failure_analyzer:*:*:*:*:*:jenkins:*:*

References for CVE-2023-43499

cvelogic Threat Intelligence