Vulnerability in Lettersanitizer Project
CVE-2022-31103
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](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.000
Affected products
- Lettersanitizer Project
- Mat-Sz Lettersanitizer — versions < 1.0.2
Weakness classification (CWE)
References
- github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj (Third Party Advisory)
- github.com/mat-sz/react-letter/issues/17 (Third Party Advisory, Issue Tracking)
- github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a17… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31103?
- CVE-2022-31103 is a high-severity vulnerability in Lettersanitizer Project, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2022-06-27.
- How severe is CVE-2022-31103?
- High severity. CVSS v3 base score is 7.5 out of 10.