Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-21635

22
FAUCET Score

CVE-2021-21635 is a stored cross-site scripting (XSS) vulnerability affecting Jenkins REST List Parameter Plugin versions 1.3.0 and earlier. It arises because the plugin fails to escape a parameter name reference within embedded JavaScript. This vulnerability has a CVSS score of 5.4 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction and low privileges, potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.3.0CPE matchmatch criteria
cpe:2.3:a:jenkins:rest_list_parameter:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.76%
Probability of exploitation in next 30 days
EPSS Percentile
94.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0876 is in the 99th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: io.jenkins.plugins:rest-list-parameterFixed in: 1.3.1
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

mavenGHSA-x3m6-vcp7-98mrmedium

Stored XSS vulnerability in Jenkins REST List Parameter Plugin

May 24, 2022

References

jenkins.io / security/advisory/2021-03-30
Vendor Advisory
openwall.com / lists/oss-security/2021/03/30/1
Mailing ListThird Party Advisory