CVE-2021-21648

mediumpriority · track · 28EPSS 0.113 · 96 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

11.3% (96th) EPSS

CVSS 4.3 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Jenkins Credentials Plugin 2.3.18 and earlier does not escape user-controlled information on a view it provides, resulting in a reflected cross-site scripting (XSS) vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (8)

Products and version ranges known to be affected.

Jenkins Project Jenkins Credentials Plugin≤ unspecified ≤2.3.18enisa_euvdEU
jenkins credentials≤ 2.3.18nvdUScpe:2.3:a:jenkins:credentials:*:*:*:*:*:*:*:*
Maven org.jenkins-ci.plugins:credentials< 2.3.0.1osvUSpkg:maven/org.jenkins-ci.plugins/credentials
Maven org.jenkins-ci.plugins:credentials2.3.1 → 2.3.7.1osvUSpkg:maven/org.jenkins-ci.plugins/credentials
Maven org.jenkins-ci.plugins:credentials2.3.14 → 2.3.14.1osvUSpkg:maven/org.jenkins-ci.plugins/credentials
Maven org.jenkins-ci.plugins:credentials2.3.15 → 2.3.15.1osvUSpkg:maven/org.jenkins-ci.plugins/credentials
Maven org.jenkins-ci.plugins:credentials2.3.16 → 2.3.19osvUSpkg:maven/org.jenkins-ci.plugins/credentials
Maven org.jenkins-ci.plugins:credentials2.3.8 → 2.3.13.1osvUSpkg:maven/org.jenkins-ci.plugins/credentials

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-gchq-9r68-6jwvCross-Site Request Forgery in Jenkins Credentials Plugin2021-06-16ghsa · osvUS
Jenkins Credentials Plugin prior to 2.3.19, 2.3.15.1, 2.3.14.1, 2.3.13.1, 2.3.7.1, and 2.3.0.1 does not escape user-controlled information on a view it provides, resulting in a reflected cross-site scripting (XSS) vulnerability. Jenkins Credentials Plugin 2.3.19, 2.3.15.1, 2.3.14.1, 2.3.13.1, 2.3.7.1, and 2.3.0.1 restricts the user-controlled information it provides to a safe subset.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-05-11modified 2026-06-17

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+53008 more

references (15)

External citations — patches, advisories, analysis.

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