CVE-2021-21700
Stored XSS vulnerability in Jenkins Scriptler Plugin
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.
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 Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.
- Record
CVE-2021-21700- 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 List No score
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.
- Record
CVE-2021-21700- Updated
- 2026-11-02
EUVDEUVD-2022-3736 No score
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.
- Record
EUVD-2022-3736- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f9gf-2q87-5m44
Stored XSS vulnerability in Jenkins Scriptler Plugin
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Scriptler scripts.
Jenkins Scriptler Plugin 3.4 escapes the name of scripts on the UI when asking to confirm their deletion.
- Record
GHSA-f9gf-2q87-5m44- 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
OSVGHSA-f9gf-2q87-5m44
Stored XSS vulnerability in Jenkins Scriptler Plugin
Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Scriptler scripts.
Jenkins Scriptler Plugin 3.4 escapes the name of scripts on the UI when asking to confirm their deletion.
- Record
GHSA-f9gf-2q87-5m44- 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.jenkins-ci.plugins:scriptlerMaven |
through 3.3 | 3.4 |
org.jenkins-ci.plugins:scriptlerMaven |
before 3.4, plus listed versions 2.02.12.22.2.12.3 Show 12 moreShow less2.42.4.12.52.5.12.62.6.12.72.93.0-alpha3.13.23.3 |
3.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| 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-2021-21700 is a medium vulnerability (CVSS 5.4) in Jenkins Scriptler, published November 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in org.jenkins-ci.plugins:scriptler 3.4.