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Overview

sweetalert2 is an accessible (WAI-ARIA) replacement for JavaScript's popup boxes, supported fork of sweetalert

Affected versions of this package are vulnerable to Undesired Behavior as it displays pop-up messages that affect Russian users when visiting Russian sites.

PoC:

 if (navigator.language === 'ru' && location.host.match(/\.(ru|su|xn--p1ai)$/)) {
    const noWar = document.createElement('div')
    noWar.className = swalClasses['no-war']
    setInnerHtml(
      noWar,
      `<a href="https://www.youtube.com/watch?v=${message.youtubeId}" target="_blank">${message.text}</a>`
    )
    container.appendChild(noWar)
    container.style.paddingTop = '4em'

Remediation

There is no fixed version for sweetalert2.

References

• GitHub Commit
• GitHub Commit
• GitHub Commit
• GitHub Commit
• GitHub PR
• GitHub Release
• Snyk Explainer - Protestware