vulnwire
5.4med

CVE-2016-2817

The WebExtension sandbox feature in browser/components/extensions/ext-tabs.js in Mozilla Firefox before 46.0 does not properly restrict pri…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.4
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.3%
percentile 70%
Public exploits
0
none known

The WebExtension sandbox feature in browser/components/extensions/ext-tabs.js in Mozilla Firefox before 46.0 does not properly restrict principal inheritance during chrome.tabs.create and chrome.tabs.update API calls, which allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted extension that accesses a (1) javascript: or (2) data: URL.

Exploit prediction (EPSS)

1.25% probability of exploitation in the next 30 days, higher than 70% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.4CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

  • lists.opensuse.org /opensuse-security-announce/2016-05/msg00005.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securitytracker.com /id/1035692 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-05/msg00038.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • ubuntu.com /usn/USN-2936-2 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • security.gentoo.org /glsa/201701-15 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • ubuntu.com /usn/USN-2936-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1227462 · x_refsource_CONFIRM, x_transferred
  • ubuntu.com /usn/USN-2936-3 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • mozilla.org /security/announce/2016/mfsa2016-46.html · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.