# CVE-2026-115277: User Frontend WordPress plugin reflected XSS via field_attr parameter

Source: https://junglewise.ai/threats/cve-2026-115277-the-user-frontend-wordpress-plugin-before-4-3-14-does-not  
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-2026-115277 · Severity: info · Published 2026-10-30

The User Frontend WordPress plugin before version 4.3.14 contains a reflected cross-site scripting (XSS) vulnerability in a publicly accessible AJAX endpoint. An attacker can inject malicious JavaScript code that executes in the browsers of logged-out website visitors, potentially stealing sensitive information or performing unauthorized actions on their behalf.

Technologies: [weDevs User Frontend](https://junglewise.ai/threats/technologies/user-frontend). Vendors: [weDevs](https://junglewise.ai/threats/vendors/wedevs).

## Quick answers

**Is CVE-2026-115277 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-115277 being exploited in the wild.

**How severe is CVE-2026-115277?** Informational severity, published 30 October 2026.

**Which products and versions are affected?** weDevs User Frontend before 4.3.14.

**Is there a fix for CVE-2026-115277?** Yes: fixed in 4.3.14. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-115277 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-115277?** Check whether you run weDevs User Frontend 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 4.3.14

## Technical details

The plugin fails to sanitize and escape user-supplied values in the 'field_attr' parameter before reflecting them into HTML attributes in an AJAX response. The vulnerable endpoint is protected by an anonymous nonce that only validates for logged-out requests, meaning the XSS payload executes against unauthenticated visitors rather than authenticated users. An attacker can craft a malicious URL to trigger the vulnerability without authentication.

## Affected products

- Wedevs User Frontend before 4.3.14

## Timeline

- 2026-10-28: disclosed
- 2026-10-30: advisory

## References

- [https://wpscan.com/vulnerability/b3f0ca09-1c63-4a34-90bf-7b220fcec556/](https://wpscan.com/vulnerability/b3f0ca09-1c63-4a34-90bf-7b220fcec556/)

## Related threats

- [WordPress User Frontend plugin reflected XSS in field_attr parameter](https://junglewise.ai/threats/cve-2026-103962-the-user-frontend-membership-user-registration-user-profile-user)
- [wedevs User Frontend authorization bypass in wpuf_file_del AJAX action](https://junglewise.ai/threats/cve-2026-12406-wedevs-user-frontend-authorization-bypass-in-wpuf-file-del-ajax)