JBoss RichFaces before 4.5.4 allows remote attackers to inject expression language (EL) expressions and execute arbitrary Java code via the do parameter.
Conclusion & alert: CVE-2015-0279 is rated Moderate Risk (59.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.96%). Core evidence: EPSS rose +1.45% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.50% | 3.96% | +1.45% |
| 2 | 2026-03-17 | 3.08% | 2.50% | -0.57% |
| 3 | 2026-03-04 | — | 3.08% | — |
Full EPSS history (32 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2015-0279 |
| URL | Tags |
|---|---|
| http://jvn.jp/en/jp/JVN56297719/index.html | Third Party Advisory VDB Entry |
| http://jvndb.jvn.jp/en/contents/2015/JVNDB-2015-001959.html | Third Party Advisory VDB Entry |
| http://packetstormsecurity.com/files/153734/Tufin-Secure-Change-Remote-Code-Execution.html | |
| http://packetstormsecurity.com/files/156663/Richsploit-RichFaces-Exploitation-Toolkit.html | |
| http://rhn.redhat.com/errata/RHSA-2015-0719.html | Broken Link Vendor Advisory |
| http://seclists.org/fulldisclosure/2019/Jul/21 | |
| http://seclists.org/fulldisclosure/2020/Mar/21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1192140 | Issue Tracking Vendor Advisory |