CVE-2021-21660

Jenkins Markdown Formatter Plugin 0.1.0 and earlier does not sanitize crafted link target URLs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to edit any description rendered using the configured markup formatter.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
jenkinsCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 86%
VendorProductVersion
jenkinsmarkdown_formatter
𝑥
≤ 0.1.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2021/05/25/3
https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660
http://www.openwall.com/lists/oss-security/2021/05/25/3
https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660