# CVE-2026-57312: WPEverest Everest Forms unauthenticated reflected XSS

Source: https://junglewise.ai/threats/cve-2026-57312-wpeverest-everest-forms-unauthenticated-reflected-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-26. Updated: 2026-06-26  
License: CC BY 4.0 with a link back

CVE-2026-57312 · Severity: high · CVSS 7.1 · Published 2026-06-26

Everest Forms, a popular WordPress plugin used for building contact forms, contains a security flaw that could allow an attacker to execute malicious scripts in a user's browser. By tricking a site administrator or visitor into clicking a specially crafted link, an attacker could potentially steal session information, redirect users to malicious websites, or perform unauthorized actions on the site. This issue affects all versions up to 3.4.8 and has been resolved in version 3.5.0.

Technologies: [WPEverest Everest Forms](https://junglewise.ai/threats/technologies/everest-forms). Vendors: [WPEverest](https://junglewise.ai/threats/vendors/wpeverest).

## Quick answers

**Is CVE-2026-57312 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57312 being exploited in the wild.

**How severe is CVE-2026-57312?** High severity, with a CVSS score of 7.1, published 26 June 2026.

**Which products and versions are affected?** WPEverest Everest Forms <= 3.4.8.

**Is there a fix for CVE-2026-57312?** A patch was published on 2026-06-25: Version 3.5.0 released to address the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-57312 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57312?** Check whether you run WPEverest Everest Forms 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.

## Technical details

A Reflected Cross-Site Scripting (XSS) vulnerability exists in the Everest Forms plugin for WordPress (versions <= 3.4.8) due to improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by sending a malicious link to a victim, such as a site administrator. If the victim clicks the link, the attacker's script is executed within the context of the victim's browser session. This can lead to session hijacking, unauthorized administrative actions, or website defacement. The vulnerability is patched in version 3.5.0.

## Affected products

- WPEverest Everest Forms <= 3.4.8

## Timeline

- 2026-05-18: disclosed: Reported by bekitousei to Patchstack
- 2026-06-25: advisory: Patchstack advisory published
- 2026-06-26: advisory: NVD published CVE-2026-57312
- 2026-06-25: patched: Version 3.5.0 released to address the vulnerability

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/everest-forms/vulnerability/wordpress-everest-forms-plugin-3-4-8-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/everest-forms/vulnerability/wordpress-everest-forms-plugin-3-4-8-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [WPEverest Everest Forms missing authorization in Site Assistant REST API](https://junglewise.ai/threats/cve-2026-12270-wpeverest-everest-forms-missing-authorization-in-site-assistant)
- [Everest Forms information disclosure via residual CSV artifacts](https://junglewise.ai/threats/cve-2026-11571-everest-forms-information-disclosure-via-residual-csv-artifacts)
- [WPEverest Everest Forms unauthorized email sending in send_test_email](https://junglewise.ai/threats/cve-2026-4888-wpeverest-everest-forms-unauthorized-email-sending-in-send-test)
- [WPEverest Everest Forms PHP Object Injection in form entry metadata](https://junglewise.ai/threats/cve-2026-3296-wpeverest-everest-forms-php-object-injection-in-form-entry)