SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-21657

Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

HIGH 8.8EPSS 1.60%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.60% probability · 74th percentile
CISA KEV
Not listed
Affected
jenkins/filesystem trigger
Source
jenkinsci-cert@googlegroups.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.