Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lettersanitizer Project | Lettersanitizer | < 1.0.2 |
Related Weaknesses (CWE)
References
- https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91baPatchThird Party Advisory
- https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jThird Party Advisory
- https://github.com/mat-sz/react-letter/issues/17Issue TrackingThird Party Advisory
- https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91baPatchThird Party Advisory
- https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jThird Party Advisory
- https://github.com/mat-sz/react-letter/issues/17Issue TrackingThird Party Advisory
FAQ
What is CVE-2022-31103?
CVE-2022-31103 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2022-31103?
CVE-2022-31103 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31103?
Check the references section above for vendor advisories and patch information. Affected products include: Lettersanitizer Project Lettersanitizer.