Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jenkins | Markdown Formatter | <= 0.1.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/05/25/3Mailing ListThird Party Advisory
- https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198Vendor Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/25/3Mailing ListThird Party Advisory
- https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198Vendor Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660Third Party Advisory
FAQ
What is CVE-2021-21660?
CVE-2021-21660 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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...
How severe is CVE-2021-21660?
CVE-2021-21660 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21660?
Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Markdown Formatter.