Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS)
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
Why it matters now
EPSS 0.00734 54th percentileScored 2026-11-07
Fix Fixed Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter (Unknown): 3.74
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter | 3.74 to before 3.74 | 3.74 | Patch available | CNA |
- Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter VendorUnknown Affected 3.74 to before 3.74 Fixed in 3.74 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:* | before 3.74 | Vulnerable | popupbuilder |
- cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:* Versions before 3.74 Vulnerable ·popupbuilder
Remediation
- Fix · CNA Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter (Unknown) Fixed in 3.74
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24152
- 2026-10-03 Alias added: GHSA-jqrr-p4p9-3jf4
References
More popupbuilder Popup Builder vulnerabilities
- TI-2022-00402 Popup Builder < 4.1.1 - SQL Injection to Reflected Cross-Site Scripting CVSS 3.1CRITICAL 9.8
- TI-2023-05777 popup-builder < 4.2.6 - Admin+ SSRF & File Read CVSS 3.1HIGH 7.5
- TI-2024-08748 Popup Builder < 4.3.5 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2020-07226 The Popup Builder plugin 2.2.8 through 2.6.7.6 for WordPress is vulnerable to SQL… CVSS 3.1CRITICAL 9.8
- TI-2019-10917 A SQL injection vulnerability exists in the Sygnoos Popup Builder plugin before 3.45 for… CVSS 3.1CRITICAL 9.8
- TI-2021-07360 Popup Builder < 4.0.7 - LFI to RCE CVSS 3.1HIGH 8.8
Sources
- CVE-2021-24152 · CVE Program
- CVE-2021-24152 · NVD
- FIRST EPSS
- GHSA-jqrr-p4p9-3jf4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences