CVE-2026-27403: Nerdpress Hubbub Lite

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NerdPress Hubbub Lite allows Stored XSS. This issue affects Hubbub Lite: from n/a through 1.36.3.

Affected products

• Nerdpress Hubbub Lite: up to and including 1.36.3

Published 2026-07-23. Last modified 2026-07-23.