What is CVE-2026-12421?

CVE-2026-12421 is a high-severity vulnerability in Arforms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-23.

How severe is CVE-2026-12421?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Arforms

CVE-2026-12421

The ARforms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'password' Field Values in all versions up to, and including, 7.2.1 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

N/a Arforms — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-12421?: CVE-2026-12421 is a high-severity vulnerability in Arforms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-23.
How severe is CVE-2026-12421?: High severity. CVSS v3 base score is 7.2 out of 10.