Cross-site scripting (XSS) vulnerability in the V8ContextNativeHandler::GetModuleSystem function in extensions/renderer/v8_context_native_handler.cc in Google Chrome before 44.0.2403.89 allows remote attackers to inject arbitrary web script or HTML by leveraging the lack of a certain V8 context restriction, aka a Blink "Universal XSS (UXSS)."
Conclusion & alert: CVE-2015-1286 is rated Moderate Risk (41.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.69%). 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 | 2025-07-16 | 0.75% | 0.69% | -0.06% |
| 2 | 2025-06-04 | 0.91% | 0.75% | -0.16% |
| 3 | 2025-03-30 | — | 0.91% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2015-1286: 1 GLSA(s) (201603-09), 1 atom(s) (www-client/chromium); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-1286 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2015-1286 |
ubuntu
|
medium | CVE-2015-1286 medium priority: Ubuntu including 2 source packages (chromium-browser, oxide-qt), 12 status rows across 6 suites (precise, trusty, upstream, utopic, vivid, wily): not-affected 4, released 4, DNE 2, ignored 2. | https://ubuntu.com/security/CVE-2015-1286 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop_supplementary | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop_supplementary:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_supplementary | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server_supplementary:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_supplementary_eus | 6.7z | cpe:2.3:o:redhat:enterprise_linux_server_supplementary_eus:6.7z:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation_supplementary | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation_supplementary:6.0:*:*:*:*:*:*:* |
| chrome | <= 43.0.2357.134 | cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* |