CVE-2021-21657: jenkins project jenkins filesystem trigger plugin
CVSS: 8.8v3.1HighModified
AliasesGHSA-cphv-7cxw-5hcc
Published 25-05-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21657 is a high (CVSS 8.8) vulnerability in jenkins project jenkins filesystem trigger plugin. EPSS estimates a 1.60% chance of exploitation in the next 30 days, higher than 75.5% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.60%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-05-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.60%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.60% on 21-09-2026
21-09-202621-10-2026
EPSS score1.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Jenkins1 product
- filesystem_trigger≤ 0.40
Jenkins project1 product
- jenkins filesystem trigger plugin≥ unspecified, ≤ 0.40
Org.jenkins-ci.plugins1 product
- fstrigger< 0.41
3 vendors · 3 products
References
4 links- www.openwall.com/lists/oss-security/2021/05/25/3Mailing ListX Refsource MLISTWEBThird Party Advisory