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Vulnerability record · CVE-2026-1058 · published 3 February 2026

CVE-2026-1058: Cross-site scripting vulnerability

The Form Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via hidden field values in all versions up to, and including, 1.15.35. This is due to insufficient output escaping when displaying hidden field values in the admin submissions list. The plugin uses html_entity_decode() on user-supplied hidden field values without subsequent escaping before output, which converts HTML entity-encoded payloads back into executable JavaScript. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in the admin submissions view that will execute whenever an administrator accesses the submissions list.

7.1 CVSS 3.1 High EPSS 0.34% · top 75.1% CWE-79 · Cross-site scripting Deferred
7.1CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

The Form Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via hidden field values in all versions up to, and including, 1.15.35. This is due to insufficient output escaping when displaying hidden field values in the admin submissions list. The plugin uses html_entity_decode() on user-supplied hidden field values without subsequent escaping before output, which converts HTML entity-encoded payloads back into executable JavaScript. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in the admin submissions view that will execute whenever an administrator accesses the submissions list.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

References

LinkTags
https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.34/admin/views/Submissions_fm.php#L759
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3447011%40form-maker%2Ftrunk&old=344039
https://www.wordfence.com/threat-intel/vulnerabilities/id/e0ec0027-2792-4069-b413-8fdd951f5fe7?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-1058), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.