CVE-2015-8766

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-01-08 · updated 2026-06-17
Weakness: CWE-79

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.

Affected products

Getsymphony Symphony: through 2.6.3

References

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

Get alerted when CVE-2015-8766 or the next vulnerability affects your stack