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Vulnerability record · CVE-2021-21642 · published 21 April 2021

CVE-2021-21642: Jenkins config file provider xml external entity (xxe) vulnerability

Jenkins · Config File Provider

Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

8.1 CVSS 3.1 High EPSS 38% · top 1.5% CWE-611 · XML external entity (XXE)
8.1CVSS 3.1 base score, v2 5.5
38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2021/04/21/2 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2204 Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/04/21/2 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2204 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.1CVE-2018-1000414Jenkins config file provider cross-site request forgery vulnerabilityA cross-site request forgery vulnerability exists in Jenkins Config File Provider Plugin 3.1 and earlier in ConfigFilesManagement.java, FolderConfigF…EPSS 0.84%7.5CVE-2023-40339Jenkins config file provider vulnerabilityJenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configurat…EPSS 0.78%6.5CVE-2021-21643Jenkins config file provider vulnerabilityJenkins Config File Provider Plugin 3.7.0 and earlier does not correctly perform permission checks in several HTTP endpoints, allowing attackers with…EPSS 1.1%6.5CVE-2017-1000104Jenkins config file provider improper privilege management vulnerabilityThe Config File Provider Plugin is used to centrally manage configuration files that often include secrets, such as passwords. Users with only Overal…EPSS 0.82%5.4CVE-2021-21644Jenkins config file provider cross-site request forgery vulnerabilityA cross-site request forgery (CSRF) vulnerability in Jenkins Config File Provider Plugin 3.7.0 and earlier allows attackers to delete configuration f…EPSS 1.1%5.4CVE-2018-1000413Jenkins config file provider cross-site scripting vulnerabilityA cross-site scripting vulnerability exists in Jenkins Config File Provider Plugin 3.1 and earlier in configfiles.jelly, providerlist.jelly that allo…EPSS 0.95%4.8CVE-2019-1003014Jenkins config file provider cross-site scripting vulnerabilityAn cross-site scripting vulnerability exists in Jenkins Config File Provider Plugin 3.4.1 and earlier in src/main/resources/lib/configfiles/configfil…EPSS 0.88%4.3CVE-2021-21645Jenkins config file provider vulnerabilityJenkins Config File Provider Plugin 3.7.0 and earlier does not perform permission checks in several HTTP endpoints, attackers with Overall/Read permi…EPSS 0.89%

Source: NIST National Vulnerability Database (record CVE-2021-21642), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.