CVE-2021-21659 in the critical feed json
XXE vulnerability in Jenkins URLTrigger Plugin
published 2021-05-25 5 y ago modified 2026-06-17 4 mo ago also GHSA-34j5-c4cv-mmg5 , EUVD-2022-2106
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 66.8%
- EPSS 66.8% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 0
- none known
Summary
Jenkins URLTrigger Plugin 0.48 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Patch / fix
- maven org.jenkins-ci.plugins:urltrigger 0.49
Exploit prediction
66.77% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:P/I:N/A:P |
| GitHub | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:urltrigger | <0.49 |
0.49 |
Affected products
- Jenkins project Jenkins URLTrigger Plugin
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
jenkins.io
/security/advisory/2021-05-25/#SECURITY-2341
web, vendor-advisory
-
openwall.com
/lists/oss-security/2021/05/25/3
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21659
advisory
-
github.com
/jenkinsci/urltrigger-plugin
package
Sources
- CVE List CVE-2021-21659
- GitHub Advisory GHSA-34j5-c4cv-mmg5
- NVD CVE-2021-21659
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