CVE-2021-21684 — MEDIUM (6.1)

Q: How severe is CVE-2021-21684?

CVE-2021-21684 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-21684?

Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Git.

Vulnerability Description

Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.

CVSS Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Jenkins	Git	<= 4.8.2

Related Weaknesses (CWE)

CWE-116

References

http://www.openwall.com/lists/oss-security/2021/10/06/1Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/10/06/1Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499Vendor Advisory

FAQ

What is CVE-2021-21684?

CVE-2021-21684 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scriptin...

How severe is CVE-2021-21684?

CVE-2021-21684 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21684?

Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Git.