CVE-2020-26298

Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.

CVSS v3.0 5.4 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793	Patch Third Party Advisory
https://rubygems.org/gems/redcarpet	Product Third Party Advisory
https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security	Release Notes Third Party Advisory
https://github.com/advisories/GHSA-q3wr-qw3g-3p4h	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00014.html
https://www.debian.org/security/2021/dsa-4831

Configurations

Configuration 1 (hide)

cpe:2.3:a:redcarpet_project:redcarpet:*:*:*:*:*:ruby:*:*

Information

Published : 2021-01-11 19:15

Updated : 2021-01-16 04:15

NVD link : CVE-2020-26298

Mitre link : CVE-2020-26298

JSON object : View

Products Affected

redcarpet_project

redcarpet

CWE

CWE-79

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

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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