CVE-2026-5063

NEX-Forms <= 9.1.11 - Unauthenticated Stored Cross-Site Scripting via POST Parameter Key Names

CVSS 7.2 HIGHEPSS 0.2%CWE-79

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.2EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

03 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via POST parameter key names in the submit_nex_form() function in versions up to, and including, 9.1.11 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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

Affected products

webaways · NEX-Forms – Ultimate Forms Plugin for WordPress

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References

https://plugins.trac.wordpress.org/changeset/3513524/nex-forms-express-wp-form-builder https://www.wordfence.com/threat-intel/vulnerabilities/id/9bac82ee-55bf-4381-b441-115a675e4834?source=cve