WordPress Everest Forms plugin <= 3.4.1 - Arbitrary Shortcode Execution vulnerability

published 2026-02-19 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-8355

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits: 0; none known

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in wpeverest Everest Forms everest-forms allows Code Injection.This issue affects Everest Forms: from n/a through <= 3.4.1.

Patch / fix

fixed in 1

wpeverest Everest Forms 3.4.2

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 8 mo ago (2026-02-20)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

wpeverest Everest Forms

Classification

Weakness

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/everest-forms/vulnerability/wordpress-everest-forms-plugin-3-4-1-arbitrary-shortcod
vdb-entry

Sources

CVE List CVE-2026-22422
NVD CVE-2026-22422

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary