CVE-2015-8566 json
Joomla! Framework Remote Code Injection Vulnerability
published 2015-12-16 10 y ago modified 2026-06-17 4 mo ago also GHSA-wwfh-28hx-w2r2 , EUVD-2022-5653
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.5%
- EPSS 8.5% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB
Summary
The Session package 1.x before 1.3.1 for Joomla! Framework allows remote attackers to execute arbitrary code via unspecified session values.
Patch / fix
- packagist joomla/session 1.3.1
Timeline
- Published
- First public exploit (EDB-39033)
Exploit prediction
8.46% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-39033 Joomla! 1.5 < 3.4.6 - Object Injection 'x-forwarded-for' Header Remote Code Execution webapps, 2015-12-18
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | joomla/session | <1.3.1 |
1.3.1 |
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
developer.joomla.org
/security-centre/637-20151205-session-remote-code-execution-vulnerability.html
web, vendor-advisory
-
securityfocus.com
/bid/79197
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2015-8566
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/joomla/session/CVE-2015-8566.yaml
web
-
github.com
/joomla-framework/session
package
-
web.archive.org
/web/20160603093633/http://www.securityfocus.com/bid/79197
web
Sources
- CVE List CVE-2015-8566
- GitHub Advisory GHSA-wwfh-28hx-w2r2
- NVD CVE-2015-8566
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.