An XSS vulnerability in the popup-builder plugin before 3.64.1 for WordPress allows…
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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
An XSS vulnerability in the popup-builder plugin before 3.64.1 for WordPress allows remote attackers to inject arbitrary JavaScript into existing popups via an unsecured ajax action in com/classes/Ajax.php. It is possible for an unauthenticated attacker to insert malicious JavaScript in several of the popup's fields by sending a request to wp-admin/admin-ajax.php with the POST action parameter of sgpb_autosave and including additional data in an allPopupData parameter, including the popup's ID (which is visible in the source of the page in which the popup is inserted) and arbitrary JavaScript which will then be executed in the browsers of visitors to that page. Because the plugin functionality automatically adds script tags to data entered into these fields, this injection will typically bypass most WAF applications.
Why it matters now
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:* | before 3.64.1 | Vulnerable | popupbuilder |
- cpe:2.3:a:sygnoos:popup_builder:*:*:*:*:*:wordpress:*:* Versions before 3.64.1 Vulnerable ·popupbuilder
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10196
- 2026-10-03 Alias added: GHSA-3mqf-h9j7-cgh5
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-2020-10196 · CVE Program
- CVE-2020-10196 · NVD
- FIRST EPSS
- GHSA-3mqf-h9j7-cgh5 · GitHub Advisory Database · CC BY 4.0
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