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-2021-21648

25
FAUCET Score

CVE-2021-21648 is a reflected cross-site scripting (XSS) vulnerability affecting Jenkins Credentials Plugin versions 2.3.18 and earlier, stemming from a failure to escape user-controlled input on a specific view. Rated Medium with a CVSS score of 6.1, this vulnerability can be exploited remotely with low attack complexity, requiring user interaction to achieve partial confidentiality and integrity impact. There is currently no evidence of active exploitation, public exploit code (e.g., Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.18CPE matchmatch criteria
cpe:2.3:a:jenkins:credentials:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
11.31%
Probability of exploitation in next 30 days
EPSS Percentile
95.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1131 is in the 98th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.0.1
mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.19
mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.15.1
mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.14.1
mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.13.1
mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:credentialsFixed in: 2.3.7.1
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.8Fixed in: jenkins-2-plugins-0:4.8.1624022417-1.el8
View patch
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

mavenGHSA-gchq-9r68-6jwvmedium

Cross-Site Request Forgery in Jenkins Credentials Plugin

Jun 16, 2021
redhatCVE-2021-21648Moderate

jenkins-2-plugins/credentials: Reflected XSS vulnerability in Credentials Plugin

May 11, 2021

References

jenkins.io / security/advisory/2021-05-11
Vendor Advisory