How severe is CVE-2026-0800?

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

XSS in Specialk User Submitted Posts – Enable Users To Submit From The Front End

CVE-2026-0800

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom fields in all versions up to, and including, 20251210 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: 0.002 (11.8th 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

Specialk User Submitted Posts – Enable Users To Submit From The Front End — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-0800?: CVE-2026-0800 is a high-severity vulnerability in Specialk User Submitted Posts – Enable Users To Submit From The Front End, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-01-24.
How severe is CVE-2026-0800?: High severity. CVSS v3 base score is 7.2 out of 10.