CVE-2021-21648
CVE-2021-21648 is a medium-severity vulnerability in Jenkins Credentials with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 11% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Jenkins Credentials
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2021-21648?
- 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.
- How severe is CVE-2021-21648?
- CVE-2021-21648 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-21648 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-21648?
- CVE-2021-21648 affects Jenkins Credentials. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-21648?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-21648 published?
- CVE-2021-21648 was published on 2021-05-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:jenkins:credentials:*:*:*:*:*:jenkins:*:*
More vulnerabilities in Jenkins Credentials
- CVE-2024-47805 — High (CVSS 7.5): Jenkins Credentials Plugin 1380.va_435002fa_924 and earlier, except 1371.1373.v4eb_fa_b_7161e9, does not redact…
- CVE-2022-29036 — Medium (CVSS 5.4): Jenkins Credentials Plugin 1111.v35a_307992395 and earlier, except 1087.1089.v2f1b_9a_b_040e4,…
- CVE-2019-10320 — Medium (CVSS 4.3): Jenkins Credentials Plugin 2.1.18 and earlier allowed users with permission to create or update credentials to confirm…
All CVEs affecting Jenkins Credentials →
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
- CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
- CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
- CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
- CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
- CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
- CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…
Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →