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regular expressions Cross-Site Scripting (XSS) vulnerability

Moderate
commenthol published GHSA-3fjq-93xj-3f3f Dec 6, 2019

Package

npm serialize-to-js (npm)

Affected versions

< 3.0.0

Patched versions

3.0.1

Description

Impact

Affected versions of this package are vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions.

This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions.

If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.

Patches

This was patched in v3.0.1.

Severity

Moderate

CVE ID

CVE-2019-16772

Weaknesses

No CWEs