Is CVE-2022-31103 in the CISA KEV catalog?

No. CVE-2022-31103 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-31103?

CVE-2022-31103 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-31103?

CVE-2022-31103 has an EPSS score of 1.38% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-31103?

Upgrade lettersanitizer to 1.0.2 or later.

CVE & CISA-KEV Catalog

CVE-2022-31103

HIGH

7.5

CVSS v3

NVD

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, therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.

CWE-754

How to fix

Remediation Available

lettersanitizerNVD

Affected:< 1.0.2Fixed in:1.0.2CVE-2022-31103derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.38%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Embed a live status badge for CVE-2022-31103

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.