Lucene search

JenkinsCVE-2021-21660

HistoryMay 25, 2021 - 5:15 p.m.

CVE-2021-21660

2021-05-2517:15:08

CWE-79

jenkins

web.nvd.nist.gov

cve-2021-21660

jenkins

markdown formatter plugin

xss

vulnerability

nvd

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

26.9%

JSON

Jenkins Markdown Formatter Plugin 0.1.0 and earlier does not sanitize crafted link target URLs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to edit any description rendered using the configured markup formatter.

Affected configurations

Nvd

Node

jenkinsmarkdown_formatterRange≤0.1.0jenkins

VendorProductVersionCPE
jenkinsmarkdown_formatter*cpe:2.3:a:jenkins:markdown_formatter:*:*:*:*:*:jenkins:*:*

Vendor	Product	Version	CPE
jenkins	markdown_formatter	*	cpe:2.3:a:jenkins:markdown_formatter::::::jenkins::*

CNA Affected

[
  {
    "product": "Jenkins Markdown Formatter Plugin",
    "vendor": "Jenkins project",
    "versions": [
      {
        "lessThanOrEqual": "0.1.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.openwall.com/lists/oss-security/2021/05/25/3

www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198

www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660

Social References

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

26.9%

JSON

Related for CVE-2021-21660