What’s Vulnerable › Vulnerabilities

CVE-2023-3186: Supsystic Popup < 1.10.19 - Prototype Pollution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-17 · updated 2026-06-17

Description

The Popup by Supsystic WordPress plugin before 1.10.19 has a prototype pollution vulnerability that could allow an attacker to inject arbitrary properties into Object.prototype.

Affected products

• supsystic Popup by Supsystic: before 1.10.19 — fixed in 1.10.19

How to fix

Upgrade to a fixed version: supsystic Popup by Supsystic 1.10.19. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/545007fc-3173-47b1-82c4-ed3fd1247b9c
• https://wpscan.com/vulnerability/545007fc-3173-47b1-82c4-ed3fd1247b9c

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