CVE-2015-8766 json
Symphony CMS XSS Vulnerabilities
published 2016-01-08 10 y ago modified 2026-06-17 4 mo ago also GHSA-4c5w-qqfg-grf3 , EUVD-2022-2352
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist symphonycms/symphony-2 2.6.4
Exploit prediction
1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- seclists.org http://seclists.org/fulldisclosure/2015/Dec/60 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | symphonycms/symphony-2 | <2.6.4 |
2.6.4 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/symphonycms/symphony-2/commit/651e150091c61fb60ad1dff2bc2166185a83d9d6
web
-
getsymphony.com
/download/releases/version/2.6.4/
patch, vendor-advisory
-
seclists.org
/fulldisclosure/2015/Dec/60
mailing-list, web, exploit
- cybersecurityworks.com /zerodays/cve-2015-8766-getsymphoney.html
-
nvd.nist.gov
/vuln/detail/CVE-2015-8766
advisory
-
github.com
/symphonycms/symphony-2
package
-
web.archive.org
/web/20210321090853/https://cybersecurityworks.com/zerodays/cve-2015-8766-getsymphoney.html
web
-
getsymphony.com
/download/releases/version/2.6.4
web
Sources
- CVE List CVE-2015-8766
- GitHub Advisory GHSA-4c5w-qqfg-grf3
- NVD CVE-2015-8766
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.