CVE-2021-21699
Stored XSS vulnerability in Jenkins Active Choices Plugin
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
- Record
CVE-2021-21699- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE ListNo score
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
- Record
CVE-2021-21699- Updated
- 2026-11-02
EUVDEUVD-2022-5204No score
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
- Record
EUVD-2022-5204- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rp4x-h577-chvq
Stored XSS vulnerability in Jenkins Active Choices Plugin
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Jenkins Active Choices Plugin 2.5.7 escapes references to parameter names.
- Record
GHSA-rp4x-h577-chvq- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
- Record
CVE-2021-21699- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-rp4x-h577-chvq
Stored XSS vulnerability in Jenkins Active Choices Plugin
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Jenkins Active Choices Plugin 2.5.7 escapes references to parameter names.
- Record
GHSA-rp4x-h577-chvq- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.biouno:uno-choiceMaven | through 2.5.6 | 2.5.7 |
org.biouno:uno-choiceMaven | before 2.5.7, plus listed versions 1.01.11.21.31.4 Show 20 moreShow less1.5-alpha-11.5.01.5.11.5.21.5.31.5.3-alpha2.02.12.22.2.12.2.22.32.42.52.5.12.5.22.5.32.5.42.5.52.5.6 | 2.5.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-21699 is a medium vulnerability (CVSS 5.4) in Jenkins Active Choices, published November 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 88.5%, the 99th percentile. Fixed in org.biouno:uno-choice 2.5.7.