User Profile Builder <= 4.0.2 - Unauthenticated Stored Cross-Site Scripting via Avatar Field
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 User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Avatar Field in all versions up to, and including, 4.0.2 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. The zero-length multipart file branch in wppb_save_avatar_value() writes the raw request value directly to user meta, bypassing the wppb_save_attachment_id()/wppb_verify_attachment_id() validation path; the stored payload is later adopted as a WordPress attachment URL and rendered unescaped by wppb_default_fields_make_upload_button() when an administrator views the affected account.
Why it matters now
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 |
|---|---|---|---|---|---|
| Cozmoslabs | User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor | up to 4.0.2 | — | No fix listed | CNA |
- User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor VendorCozmoslabs Affected up to 4.0.2 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cozmoslabs:profile_builder:*:*:*:*:*:*:*:* | — | — | Cozmoslabs |
- cpe:2.3:a:cozmoslabs:profile_builder:*:*:*:*:*:*:*:* Versions — — ·Cozmoslabs
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-95866
- 2026-10-03 Alias added: GHSA-8232-rvww-wm4x
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/68cef86f-3a6a-47c4-a092-de3bb40ac157?source=cve
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/upload/upload_helper_functions.php#L286
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/avatar/avatar.php#L127
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/avatar/avatar.php#L67
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3708665%40profile-builder&new=3708665%40profile-builder
More Cozmoslabs vulnerabilities
- TI-2024-06204 profile-builder <= 3.11.8 - Unauthenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2024-05908 User Profile Builder < 3.11.8 - Unauthenticated Media Upload CVSS 3.1CRITICAL 9.1
- TI-2026-56948 Cozmoslabs Profile Builder Plugin Avatar Simple Upload AJAX admin-ajax.php wppb_ajax_simple_avatar unrestricted upload CVSS 4.0MEDIUM 6.9
- TI-2026-15943 TranslatePress – Multilingual <= 3.3.1 - Unauthenticated Account Takeover via Password Reset Link Disclosure CVSS 3.1CRITICAL 9.8
- TI-2026-13308 Incorrect type conversion in Cozmoslabs User Profile Builder – Beautiful User… CVSS 3.1CRITICAL 9.8
- TI-2024-06217 Profile Builder <= 3.12.0 - Admin+ Stored Cross Site Scripting CVSS 3.1MEDIUM 4.8
Sources
- CVE-2026-95866 · CVE Program
- CVE-2026-95866 · NVD
- FIRST EPSS
- GHSA-8232-rvww-wm4x · 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