CVE-2020-2221: jenkins project jenkins
Vulnerability summary
CVE-2020-2221 is a medium (CVSS 5.4) vulnerability in jenkins project jenkins. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 65% of scored vulnerabilities.
Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5Timeline
- 15-07-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Jenkins 2.244 and earlier, LTS 2.235.1 and earlier does not escape the upstream job's display name shown as part of a build cause, resulting in a stored cross-site scripting vulnerability.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · MavenEcosystem advisory · calculated8.0HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HDiffers
- OSV · AlpineEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.08%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.08% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- jenkins< 2.245-r0
Jenkins1 product
- jenkins≤ 2.235.1 | ≤ 2.244
Jenkins project1 product
- jenkins≥ unspecified, ≤ 2.244 | ≥ unspecified, ≤ LTS 2.235.1
Org.jenkins-ci.main1 product
- jenkins-core< 2.235.2 | ≥ 2.236, < 2.245
4 vendors · 4 products
References
6 links- www.openwall.com/lists/oss-security/2020/07/15/5Mailing ListX Refsource MLISTWEBThird Party Advisory
- github.com/jenkinsci/jenkinsPACKAGE