Strix
26.1K

CVE-2021-21611

MEDIUMCVSS 5.4/10EPSS 1.03%

Last modified

CVE-2021-21611 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape display names and IDs of item types shown on the New Item page, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to specify display names or IDs of item types.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape display names and IDs of item types shown on the New Item page, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to specify display names or IDs of item types.

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
JenkinsJenkins<= 2.263.1
JenkinsJenkins<= 2.274

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-21611?
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape display names and IDs of item types shown on the New Item page, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to specify display names or IDs of item types.
How severe is CVE-2021-21611?
CVE-2021-21611 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21611?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21611?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST