Medium (4.8) in fluxbb fluxbb. EPSS 1.0% 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.
Severity
CVSS 3.1
4.8 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS
1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)