What’s Vulnerable › Vulnerabilities

CVE-2023-2582

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-05-08 · updated 2026-06-17
• Weakness: CWE-1321

Description

A prototype pollution vulnerability exists in Strikingly CMS which can result in reflected cross-site scripting (XSS) in affected applications and sites built with Strikingly. The vulnerability exists because of Strikingly JavaScript library parsing the URL fragment allows access to the __proto__ or constructor properties and the Object prototype. By leveraging an embedded gadget like jQuery, an attacker who convinces a victim to visit a specially crafted link could achieve arbitrary javascript execution in the context of the user's browser.

Affected products

• Strikingly: all versions

References

• https://www.tenable.com/security/research/tra-2023-18
• https://www.tenable.com/security/research/tra-2023-18

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