What’s Vulnerable › Vulnerabilities

CVE-2021-25082: Popup Builder < 4.0.7 - LFI to RCE

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-21 · updated 2026-06-17
• Weakness: CWE-22

Description

The Popup Builder WordPress plugin before 4.0.7 does not validate and sanitise the sgpb_type parameter before using it in a require statement, leading to a Local File Inclusion issue. Furthermore, since the beginning of the string can be controlled, the issue can lead to RCE vulnerability via wrappers such as PHAR

Affected products

• Popup Builder: before 4.0.7 — fixed in 4.0.7

How to fix

Upgrade to a fixed version: Popup Builder 4.0.7. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/2659117
• https://wpscan.com/vulnerability/0f90f10c-4b0a-46da-ac1f-aa6a03312132
• https://plugins.trac.wordpress.org/changeset/2659117
• https://wpscan.com/vulnerability/0f90f10c-4b0a-46da-ac1f-aa6a03312132

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