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CVE-2021-21680

24
FAUCET Score

CVE-2021-21680 is an XML External Entity (XXE) vulnerability affecting Jenkins Nested View Plugin versions 1.20 and earlier, stemming from improper XML transformer configuration. With a CVSS score of 7.1 (High), it allows an authenticated attacker to achieve high confidentiality impact and low integrity impact over a network with low attack complexity. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.20CPE matchmatch criteria
cpe:2.3:a:jenkins:nested_view:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 65th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 (2)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.plugins:nested-viewFixed in: 1.21
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

mavenGHSA-5wc4-w63v-97c3high

XXE vulnerability in Jenkins Nested View Plugin

May 24, 2022

References

jenkins.io / security/advisory/2021-08-31
Vendor Advisory
openwall.com / lists/oss-security/2021/08/31/1
Mailing ListThird Party Advisory