CVE-2015-8566
Joomla! Framework Remote Code Injection Vulnerability
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
Exploit likelihood
What each source reports
NVD Score used
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
- Record
CVE-2015-8566- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
- Record
CVE-2015-8566- Updated
- 2026-11-02
EUVDEUVD-2022-5653 No score
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
- Record
EUVD-2022-5653- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wwfh-28hx-w2r2 No score
Joomla! Framework Remote Code Injection Vulnerability
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
- Record
GHSA-wwfh-28hx-w2r2- Weakness
- CWE-74
- Updated
- 2026-11-02
OSVGHSA-wwfh-28hx-w2r2 No score
Joomla! Framework Remote Code Injection Vulnerability
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
- Record
GHSA-wwfh-28hx-w2r2- Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomla/sessionPackagist |
before 1.3.1 | 1.3.1 |
joomla/sessionPackagist |
before 1.3.1, plus listed versions 1.01.0-alpha1.0-beta1.0-beta21.0-beta3 Show 6 moreShow less1.1.01.2.01.2.11.2.21.2.31.3.0 |
1.3.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Joomla! 1.5 < 3.4.6 - Object Injection 'x-forwarded-for' Header Remote Code Execution | 2015-12-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-8566 is a high vulnerability (CVSS 7.5) in Joomla Session, published December 16, 2015. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.46%, the 95th percentile. Fixed in joomla/session 1.3.1.
References
securityfocus.com/bid/79197
developer.joomla.org/security-centre/637-20151205-session-remote-code-execution-vulnerability.html
nvd.nist.gov/vuln/detail/CVE-2015-8566
github.com/FriendsOfPHP/security-advisories/blob/master/joomla/session/CVE-2015-8566.yaml
web.archive.org/web/20160603093633/http://www.securityfocus.com/bid/79197