CVE-2026-27537: WordPress Popup by Supsystic plugin <= 1.11.2 - Cross Site Scripting (XSS) vulnerability
Published Aug 13, 2026
·Updated
Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.11.2 versions.
Affected Software
1 affected component
wordpress-popup-by-supsystic<=1.11.2
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress Popup by Supsysticto a version that resolves this vulnerability.Fixed in 1.12.0
Event History
Aug 13, 2026
CVE Published
via MITRE·01:36 PM
Data Sourced
via MITRE·01:36 PM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-27537?
The severity of CVE-2026-27537 is medium with a score of 6.5.
2
What type of vulnerability is CVE-2026-27537?
CVE-2026-27537 is a Cross Site Scripting (XSS) vulnerability.
3
How do I fix CVE-2026-27537?
To fix CVE-2026-27537, update the Popup by Supsystic plugin to version 1.11.3 or later.
4
What versions are affected by CVE-2026-27537?
CVE-2026-27537 affects Popup by Supsystic plugin versions up to and including 1.11.2.
5
Is authentication required to exploit CVE-2026-27537?
No, CVE-2026-27537 can be exploited without authentication.