CVE-2021-21648

jenkins-2-plugins/credentials: Reflected XSS vulnerability in Credentials Plugin

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Jenkins Credentials Plugin versiones 2.3.18 y anteriores, no escapa la información controlada por el usuario en una vista que la proporciona, resultando en una vulnerabilidad de tipo cross-site scripting (XSS) reflejado

The reflected cross-site scripting (XSS) vulnerability was found in jenkins credentials plugin. On a `view it` there is no escape from provided by user information (user-controlled).

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.8.2. Issues addressed include bypass, cross site scripting, and denial of service vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-04 CVE Reserved
2021-05-11 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2349	2023-11-03
https://access.redhat.com/security/cve/CVE-2021-21648	2021-07-27
https://bugzilla.redhat.com/show_bug.cgi?id=1959545	2021-07-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Jenkins Search vendor "Jenkins"		Credentials Search vendor "Jenkins" for product "Credentials"				<= 2.3.18 Search vendor "Jenkins" for product "Credentials" and version " <= 2.3.18"		jenkins		Affected