Name: CVE-2026-27537: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2026-08-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-27537, CWE-79, CVSS 6.5, EPSS 0.00224

Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.11.2 versions.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Popup By Supsystic Plugin	—	Update popup-by-supsystic plugin to version 1.12.0, or a newer patched version	Aug 14, 2026	Aug 11, 2026

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CVSS Details

Covered by Rapid7

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