Cyber Resilience

CVE-2022-23517

High

Published: 14 December 2022

Published
14 December 2022
Modified
03 November 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0031 54.8th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-23517 is a high-severity Inefficient Regular Expression Complexity (CWE-1333) vulnerability in Rubyonrails Rails Html Sanitizers. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 45.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial…

more

of service through CPU resource consumption. This issue has been patched in version 1.4.4.

CWE(s)
CWE-1333

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

rubyonrails
rails html sanitizers
≤ 1.4.4
debian
debian linux
10.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References