CVE-2020-35240: Fluxbb

Medium severity, CVSS 4.8. EPSS: 1% chance of exploitation in the next 30 days.

FluxBB 1.5.11 is affected by cross-site scripting (XSS in the Blog Content component. This vulnerability can allow an attacker to inject the XSS payload in "Blog Content" and each time any user will visit the blog, the XSS triggers and the attacker can able to steal the cookie according to the crafted payload.

Affected products

• Fluxbb Fluxbb: version 1.5.11 only

Published 2020-12-30. Last modified 2026-06-17.