# CVE-2026-54855: Profile Builder unauthenticated cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-54855-unauthenticated-cross-site-scripting-xss-in-profile-builder-4-0-5  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-30. Updated: 2026-10-30  
License: CC BY 4.0 with a link back

CVE-2026-54855 · Severity: high · CVSS 7.1 · Published 2026-10-30

Profile Builder is a WordPress plugin for creating user profiles and registration forms on websites. An unauthenticated attacker can inject malicious scripts that execute in visitors' browsers, potentially stealing session data, passwords, or hijacking user accounts. User interaction (such as clicking a malicious link) is required to trigger the vulnerability.

Technologies: [Cozmoslabs Profile Builder](https://junglewise.ai/threats/technologies/profile-builder). Vendors: [Cozmoslabs](https://junglewise.ai/threats/vendors/cozmoslabs).

## Quick answers

**Is CVE-2026-54855 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-54855 being exploited in the wild.

**How severe is CVE-2026-54855?** High severity, with a CVSS score of 7.1, published 30 October 2026.

**Which products and versions are affected?** Cozmoslabs Profile Builder <=4.0.5.

**Is there a fix for CVE-2026-54855?** Yes: fixed in 4.0.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-54855 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-54855?** Check whether you run Cozmoslabs Profile Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 4.0.6

## Technical details

Unauthenticated cross-site scripting (XSS) vulnerability in Profile Builder plugin versions 4.0.5 and earlier. The vulnerability allows attackers to inject malicious JavaScript via a network attack vector, requiring user interaction for successful exploitation. An attacker gains the ability to steal visitor credentials or perform actions on behalf of victims.

## Affected products

- Cozmoslabs Profile Builder <=4.0.5

## Timeline

- 2026-10-30: disclosed
- 2026-10-30: patched

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/profile-builder/vulnerability/wordpress-profile-builder-plugin-4-0-5-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/profile-builder/vulnerability/wordpress-profile-builder-plugin-4-0-5-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [Cozmoslabs Profile Builder broken access control](https://junglewise.ai/threats/cve-2026-125776-missing-authorization-vulnerability-in-cozmoslabs-profile)
- [Cozmoslabs Profile Builder sensitive data exposure](https://junglewise.ai/threats/cve-2026-125777-insertion-of-sensitive-information-into-sent-data-vulnerability)
- [WordPress Profile Builder privilege escalation in user roles](https://junglewise.ai/threats/cve-2026-54854-contributor-privilege-escalation-in-profile-builder-4-0-5)
- [Cozmoslabs Profile Builder broken access control vulnerability](https://junglewise.ai/threats/cve-2026-54853-missing-authorization-vulnerability-in-cozmoslabs-profile-builder)
- [Profile Builder WordPress plugin account takeover via unauthorized email edit](https://junglewise.ai/threats/cve-2026-111982-the-user-profile-builder-wordpress-plugin-before-4-0-5-does-not)