XSS in Usystemsgmbh Webling

CVE-2026-1263

The Webling plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.9.0 due to insufficient input sanitization, insufficient output escaping, and missing capabilities checks in the 'webling…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1263?
CVE-2026-1263 is a medium-severity vulnerability in Usystemsgmbh Webling, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-10.
How severe is CVE-2026-1263?
Medium severity. CVSS v3 base score is 6.4 out of 10.