Threat intelligence

Smart Popup by Supsystic <= 1.11.2 - Unauthenticated Stored Cross-Site Scripting

CVE-2026-27537 · popup-by-supsystic

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Popup By Supsystic at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Smart Popup by Supsystic <= 1.11.2 - Unauthenticated Stored Cross-Site Scripting
Affected software: popup-by-supsystic(Plugin)
Affected versions: ≤ 1.11.2
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-27537
Published: 11 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory c57bd721-2888-47d1-97a4-7c7603396f2b). Methodology and redistribution notes

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