Popup by Supsystic: Cross-site scripting
Popup by Supsystic is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is n/a through 1.11.2.
- Component
- Popup by Supsystic
- Plugin slug
popup-by-supsystic- Affected
- n/a through 1.11.2
- Safe version
1.12.0- Published
- Aug 13, 2026
This CVE was published Aug 13, 2026 and is one of 7 known issues for this plugin.
Update, patch or deactivate.
Update Popup by Supsystic to 1.12.0 or later, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.11.2 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L