What’s Vulnerable › Vulnerabilities

CVE-2021-24152: Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS)

• Severity: medium (CVSS 6.1 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: none known
• Published: 2021-04-05 · updated 2026-06-17
• Weakness: CWE-79

Description

The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.

Affected products

• Popup Builder: before 3.74 — fixed in 3.74

How to fix

Upgrade to a fixed version: Popup Builder 3.74. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/597e9686-f4e2-43bf-85ef-c5967e5652bd
• https://wpscan.com/vulnerability/597e9686-f4e2-43bf-85ef-c5967e5652bd

Get alerted when CVE-2021-24152 or the next vulnerability affects your stack