What’s Vulnerable › Vulnerabilities

CVE-2022-4216: Chained Quiz <= 1.3.2.2 - Authenticated (Admin+) Stored Cross-Site Scripting via Facebook App ID

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-12-02 · updated 2026-06-17
• Weakness: CWE-79

Description

The Chained Quiz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'facebook_appid' parameter in versions up to, and including, 1.3.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative privileges to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• prasunsen Chained Quiz: through 1.3.2.2

References

• https://gist.github.com/Xib3rR4dAr/417a11bcb9b8da28cfe5ba1c17c44d0e
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2825114%40chained-quiz&new=2825114%40chained-quiz&sfp_email=&sfph_mail=
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2825368%40chained-quiz&new=2825368%40chained-quiz&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/c031d2a4-d009-4422-a751-b8476e15a808?source=cve
• https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4216
• https://gist.github.com/Xib3rR4dAr/417a11bcb9b8da28cfe5ba1c17c44d0e
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2825114%40chained-quiz&new=2825114%40chained-quiz&sfp_email=&sfph_mail=
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2825368%40chained-quiz&new=2825368%40chained-quiz&sfp_email=&sfph_mail=
• https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4216

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