CVE-2022-31103 Improper handling of CSS at-rules in lettersanitizer

2022-06-2722:20:16

CWE-754

GitHub_M

www.cve.org

cve-2022-31103

lettersanitizer

denial of service

react-letter

patch

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

46.6%

JSON

lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule @keyframes. This package is depended on by react-letter, therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.

CNA Affected

[
  {
    "product": "lettersanitizer",
    "vendor": "mat-sz",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.0.2"
      }
    ]
  }
]