Vulnerability in Jenkins Generic Webhook Trigger

CVE-2021-21669

Jenkins Generic Webhook Trigger Plugin 1.72 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

EPSS: 0.257 (97.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jenkins Generic_webhook_trigger
Jenkins Project Generic Webhook Trigger Plugin — versions unspecified

References

jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21669?: CVE-2021-21669 is a critical-severity vulnerability in Jenkins Generic Webhook Trigger. CVSS score: 9.8/10. Published 2021-06-18.
How severe is CVE-2021-21669?: Critical severity. CVSS v3 base score is 9.8 out of 10.