CVE-2015-7215: fedoraproject fedora
Vulnerability summary
CVE-2015-7215 is a medium (CVSS 5.0) vulnerability in fedoraproject fedora. EPSS estimates a 2.53% chance of exploitation in the next 30 days, higher than 84.9% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 16-12-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The importScripts function in the Web Workers API implementation in Mozilla Firefox before 43.0 allows remote attackers to bypass the Same Origin Policy by triggering use of the no-cors mode in the fetch API to attempt resource access that throws an exception, leading to information disclosure after a rethrow.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.53%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.53% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Fedoraproject1 product
- fedoraEOL22 | 23
Mozilla1 product
- firefox≤ 42.0
Ubuntu1 product
- firefox< 43.0+build1-0ubuntu0.14.04.1
4 vendors · 5 products
References
18 links- bugzilla.mozilla.org/show_bug.cgi?id=1160890X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.htmlVendor AdvisoryX Refsource FEDORA
- github.com/whatwg/html/issues/164X Refsource MISC
Show all 18 references
- github.com/whatwg/html/pull/166X Refsource MISC
- lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.htmlVendor AdvisoryX Refsource FEDORA