CVE-2015-1155

The history implementation in WebKit, as used in Apple Safari before 6.2.6, 7.x before 7.1.6, and 8.x before 8.0.6, allows remote attackers to bypass the Same Origin Policy and read arbitrary files via a crafted web site.

Published: 2015-05-08 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-1155 is rated Moderate Risk (56.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 67.87%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.72% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-1155

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 2026-04-01 63.15% 67.87% +4.72%
2 2025-10-09 55.13% 63.15% +8.02%
3 2025-07-20 — 55.13% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1155

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-1155

OS Trackers for CVE-2015-1155

vendor priority summary link
ubuntu medium CVE-2015-1155 medium priority: Ubuntu including 4 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit, webkitgtk), 32 status rows across 8 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety): ignored 14, DNE 10, needs-triage 4, released 4. https://ubuntu.com/security/CVE-2015-1155

Affected software / configurations for CVE-2015-1155

Vendor Product Version Raw CPE
apple iphone_os <= 8.3 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple safari <= 6.2.5 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple safari 7.0 cpe:2.3:a:apple:safari:7.0:*:*:*:*:*:*:*
apple safari 7.0.1 cpe:2.3:a:apple:safari:7.0.1:*:*:*:*:*:*:*
apple safari 7.0.2 cpe:2.3:a:apple:safari:7.0.2:*:*:*:*:*:*:*
apple safari 7.0.3 cpe:2.3:a:apple:safari:7.0.3:*:*:*:*:*:*:*
apple safari 7.0.4 cpe:2.3:a:apple:safari:7.0.4:*:*:*:*:*:*:*
apple safari 7.0.5 cpe:2.3:a:apple:safari:7.0.5:*:*:*:*:*:*:*
apple safari 7.0.6 cpe:2.3:a:apple:safari:7.0.6:*:*:*:*:*:*:*
apple safari 7.1.0 cpe:2.3:a:apple:safari:7.1.0:*:*:*:*:*:*:*
apple safari 7.1.1 cpe:2.3:a:apple:safari:7.1.1:*:*:*:*:*:*:*
apple safari 7.1.2 cpe:2.3:a:apple:safari:7.1.2:*:*:*:*:*:*:*
apple safari 7.1.3 cpe:2.3:a:apple:safari:7.1.3:*:*:*:*:*:*:*
apple safari 7.1.4 cpe:2.3:a:apple:safari:7.1.4:*:*:*:*:*:*:*
apple safari 7.1.5 cpe:2.3:a:apple:safari:7.1.5:*:*:*:*:*:*:*
apple safari 8.0.0 cpe:2.3:a:apple:safari:8.0.0:*:*:*:*:*:*:*
apple safari 8.0.1 cpe:2.3:a:apple:safari:8.0.1:*:*:*:*:*:*:*
apple safari 8.0.2 cpe:2.3:a:apple:safari:8.0.2:*:*:*:*:*:*:*
apple safari 8.0.3 cpe:2.3:a:apple:safari:8.0.3:*:*:*:*:*:*:*
apple safari 8.0.4 cpe:2.3:a:apple:safari:8.0.4:*:*:*:*:*:*:*
apple safari 8.0.5 cpe:2.3:a:apple:safari:8.0.5:*:*:*:*:*:*:*

References for CVE-2015-1155

cvelogic Threat Intelligence