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GitHub_MCVE-2020-4054

HistoryJun 16, 2020 - 10:15 p.m.

CVE-2020-4054

2020-06-1622:15:10

CWE-79

GitHub_M

web.nvd.nist.gov

sanitize

rubygem

xss

vulnerability

html

sanitization

security

CVSS2

6.8

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

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

6.6

Confidence

High

EPSS

0.001

Percentile

50.0%

JSON

In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize’s “relaxed” config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize’s relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1.

Affected configurations

Nvd

Vulners

Node

sanitize_projectsanitizeRange3.0.0–5.2.1ruby

VendorProductVersionCPE
sanitize_projectsanitize*cpe:2.3:a:sanitize_project:sanitize:*:*:*:*:*:ruby:*:*

Vendor	Product	Version	CPE
sanitize_project	sanitize	*	cpe:2.3:a:sanitize_project:sanitize::::::ruby::*

CNA Affected

[
  {
    "product": "Sanitize",
    "vendor": "rgrove",
    "versions": [
      {
        "status": "affected",
        "version": ">= 3.0.0, < 5.2.1"
      }
    ]
  }
]