Brevo for WooCommerce <= 4.0.49 - Unauthenticated Stored Cross-Site Scripting
Priority LOW 37CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Brevo for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘user_connection_id’ parameter in all versions up to, and including, 4.0.49 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00297 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| neeraj_slit | Brevo for WooCommerce | up to 4.0.49 | — | No fix listed | CNA |
- Brevo for WooCommerce Vendorneeraj_slit Affected up to 4.0.49 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14436
- 2026-10-03 Alias added: GHSA-hphg-w3qv-qmf8
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/670f4e26-75c9-40cd-8088-2fa4c40f6feb?source=cve
- https://plugins.trac.wordpress.org/browser/woocommerce-sendinblue-newsletter-subscription/trunk/woocommerce-sendinblue.php#L164
- https://plugins.trac.wordpress.org/browser/woocommerce-sendinblue-newsletter-subscription/trunk/woocommerce-sendinblue.php#L171
- https://plugins.trac.wordpress.org/browser/woocommerce-sendinblue-newsletter-subscription/trunk/woocommerce-sendinblue.php#L188
- https://plugins.trac.wordpress.org/browser/woocommerce-sendinblue-newsletter-subscription/trunk/src/managers/admin-manager.php#L59
- https://plugins.trac.wordpress.org/browser/woocommerce-sendinblue-newsletter-subscription/trunk/src/views/admin_menus.php#L728
- https://plugins.trac.wordpress.org/changeset/3434903/woocommerce-sendinblue-newsletter-subscription
More neeraj_slit vulnerabilities
- TI-2025-13504 Brevo - Email, SMS, Web Push, Chat, and more. <= 3.3.0 - Unauthenticated Authorization Bypass via Type Juggling CVSS 3.1MEDIUM 6.5
- TI-2026-12873 Cross-site scripting in neeraj_slit Brevo – Email, SMS, Web Push, Chat, and more. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2025-14436 · CVE Program
- CVE-2025-14436 · NVD
- FIRST EPSS
- GHSA-hphg-w3qv-qmf8 · 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