vulnwire
6.5med

CVE-2018-12396

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events.

Published 7 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.3%
percentile 83%
Public exploits
0
none known

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Exploit prediction (EPSS)

2.27% probability of exploitation in the next 30 days, higher than 83% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

  • bugzilla.mozilla.org /show_bug.cgi?id=1483602 · x_refsource_CONFIRM, x_transferred
  • debian.org /security/2018/dsa-4324 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • mozilla.org /security/advisories/mfsa2018-26/ · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201811-04 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • mozilla.org /security/advisories/mfsa2018-27/ · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:3005 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/105718 · vdb-entry, x_refsource_BID, x_transferred
  • access.redhat.com /errata/RHSA-2018:3006 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • usn.ubuntu.com /3801-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.debian.org /debian-lts-announce/2018/11/msg00008.html · mailing-list, x_refsource_MLIST, x_transferred
  • securitytracker.com /id/1041944 · vdb-entry, x_refsource_SECTRACK, x_transferred

Sources

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