CVE-2021-24152
Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS)
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
- Record
CVE-2021-24152- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS)
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
- Record
CVE-2021-24152- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11066 No score
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
- Record
EUVD-2021-11066- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jqrr-p4p9-3jf4 No score
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site...
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
- Record
GHSA-jqrr-p4p9-3jf4- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24152 is a medium vulnerability (CVSS 6.1) in Sygnoos Popup Builder, published April 5, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. No source names a fixed version.