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Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package javassist  (opens in a new tab)

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
86.82% (100th percentile)

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  • Snyk IDSNYK-RHEL8-JAVASSIST-1460133
  • published26 Jul 2021
  • disclosed27 Mar 2019
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Introduced: 27 Mar 2019

CVE-2019-11358  (opens in a new tab)
CWE-79  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream javassist package and not the javassist package as distributed by RHEL.

jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable proto property, it could extend the native Object.prototype.

References