CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
88.9%
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
Vendor | Product | Version | CPE |
---|---|---|---|
kramdown_project | kramdown | * | cpe:2.3:a:kramdown_project:kramdown:*:*:*:*:*:ruby:*:* |
about.gitlab.com/releases/2021/03/17/security-release-gitlab-13-9-4-released/#remote-code-execution-via-unsafe-user-controlled-markdown-rendering-options
github.com/advisories/GHSA-52p9-v744-mwjj
github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1
github.com/gettalong/kramdown/pull/708
github.com/stanhu/kramdown/commit/d6a1cbcb2caa2f8a70927f176070d126b2422760
github.com/stanhu/kramdown/commit/ff0218aefcf00cd5a389e17e075d36cd46d011e2
gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66
lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/
lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/
lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/
nvd.nist.gov/vuln/detail/CVE-2021-28834
www.debian.org/security/2021/dsa-4890
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
88.9%