# CVE-2022-23517: Inefficient Regular Expression Complexity in rails-html-sanitizer

Source: https://junglewise.ai/threats/cve-2022-23517-inefficient-regular-expression-complexity-in-rails-html-sanitizer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-12-13  
License: CC BY 4.0 with a link back

CVE-2022-23517 · Severity: low · CVSS 3.1 · Published 2022-12-13

Inefficient Regular Expression Complexity in rails-html-sanitizer

Technologies: [rails-html-sanitizer (RubyGems)](https://junglewise.ai/threats/technologies/rails-html-sanitizer). Vendors: [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2022-23517 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-23517 being exploited in the wild.

**How severe is CVE-2022-23517?** Low severity, with a CVSS score of 3.1, published 13 December 2022.

**Which products and versions are affected?** rails-html-sanitizer (RubyGems) ECOSYSTEM:introduced=0,fixed=1.4.4.

**Is there a fix for CVE-2022-23517?** Yes. rails-html-sanitizer (RubyGems): upgrade to 1.4.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2022-23517?** Check whether you run rails-html-sanitizer (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- rails-html-sanitizer (RubyGems): upgrade to 1.4.4 or later

  ```sh
  bundle update rails-html-sanitizer
  ```


## Affected products

- rails-html-sanitizer (RubyGems) ECOSYSTEM:introduced=0,fixed=1.4.4

## Identifiers

- CVE-2022-23517
- GHSA-5x79-w82f-gw8w

## Related threats

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- [rails-html-sanitizer has XSS vulnerability with certain configurations](https://junglewise.ai/threats/cve-2024-53986-rails-html-sanitizer-has-xss-vulnerability-with-certain)