CVE-2018-12396
published 2019-02-28CVE-2018-12396: A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege…
PriorityP430medium6.5CVSS 3.0
AVNACLPRNUIRSUCNIHAN
EPSS
2.27%
82.9th percentile
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.
Affected
27 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | firefox | < firefox 63.0-1 (sid) | firefox 63.0-1 (sid) |
| debian | firefox-esr | < firefox 63.0-1 (sid) | firefox 63.0-1 (sid) |
| mozilla | firefox | < 63.0 | 63.0 |
| mozilla | firefox | >= 0 < 63.0.3+build1-0ubuntu0.14.04.1 | 63.0.3+build1-0ubuntu0.14.04.1 |
| mozilla | firefox | >= 0 < 63.0+build2-0ubuntu0.14.04.2 | 63.0+build2-0ubuntu0.14.04.2 |
| mozilla | firefox | >= 0 < 63.0.3+build1-0ubuntu0.16.04.1 | 63.0.3+build1-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 63.0+build2-0ubuntu0.16.04.2 | 63.0+build2-0ubuntu0.16.04.2 |
| mozilla | firefox | >= 0 < 63.0.3+build1-0ubuntu0.18.04.1 | 63.0.3+build1-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 63.0+build2-0ubuntu0.18.04.2 | 63.0+build2-0ubuntu0.18.04.2 |
| mozilla | firefox | >= unspecified < 63 | 63 |
| mozilla | firefox_esr | < 60.3 | 60.3 |
| mozilla | firefox_esr | >= unspecified < 60.3 | 60.3 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
Firefox regressions
vendor_ubuntu·2018-11-23·CVSS 8.8
[HIGH] Firefox regressions
Title: Firefox regressions
Summary: USN-3801-1 caused some minor regressions in Firefox.
USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various
minor regressions. This update fixes the problems.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass CSP
restrictions, spoof the protocol registration notification bar, leak
SameSite cookies, bypass mixed content warnings, or execute arbitrary
code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
CVE-2018-12403)
Multiple security issu
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2018-10-24·CVSS 8.8
CVE-2018-12388 [HIGH] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass CSP
restrictions, spoof the protocol registration notification bar, leak
SameSite cookies, bypass mixed content warnings, or execute arbitrary
code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
CVE-2018-12403)
Multiple security issues were discovered with WebExtensions in Firefox.
If a user were tricked in to installing a specially crafted extension, an
attacker could potenti
Red Hat
Mozilla: WebExtension content scripts can execute in disallowed contexts
vendor_redhat·2018-10-23·CVSS 6.5
CVE-2018-12396 [MEDIUM] CWE-284 Mozilla: WebExtension content scripts can execute in disallowed contexts
Mozilla: WebExtension content scripts can execute in disallowed contexts
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.
Package: thunderbird (Red Hat Enterprise Linux 6) - Not affected
Package: thunderbird (Red Hat Enterprise Linux 7) - Not affected
Package: firefox (Red Hat Enterprise Linux 8) - Not affected
Package: thunderbird (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2018-12396: firefox - A vulnerability where a WebExtension can run content scripts in disallowed conte...
vendor_debian·2018·CVSS 6.5
CVE-2018-12396 [MEDIUM] CVE-2018-12396: firefox - A vulnerability where a WebExtension can run content scripts in disallowed conte...
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.
Scope: local
sid: resolved (fixed in 63.0-1)
GHSA
GHSA-5c59-7337-gvv9: A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events
ghsa_unreviewed·2022-05-13
CVE-2018-12396 [MEDIUM] CWE-732 GHSA-5c59-7337-gvv9: A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events
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.
OSV
CVE-2018-12396: A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events
osv·2019-02-28·CVSS 6.5
CVE-2018-12396 [MEDIUM] CVE-2018-12396: A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events
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.
OSV
firefox regressions
osv·2018-11-23·CVSS 8.8
[HIGH] firefox regressions
firefox regressions
USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various
minor regressions. This update fixes the problems.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass CSP
restrictions, spoof the protocol registration notification bar, leak
SameSite cookies, bypass mixed content warnings, or execute arbitrary
code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
CVE-2018-12403)
Multiple security issues were discovered with WebExtensions in Firefox.
If a user were trick
OSV
firefox vulnerabilities
osv·2018-10-24·CVSS 8.8
CVE-2018-12388 [HIGH] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass CSP
restrictions, spoof the protocol registration notification bar, leak
SameSite cookies, bypass mixed content warnings, or execute arbitrary
code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
CVE-2018-12403)
Multiple security issues were discovered with WebExtensions in Firefox.
If a user were tricked in to installing a specially crafted extension, an
attacker could potentially exploit these to bypass domain restrictions,
gain additional privileges, or run content scripts in local pa
No detection rules found.
No public exploits indexed.
http://www.securityfocus.com/bid/105718http://www.securitytracker.com/id/1041944https://access.redhat.com/errata/RHSA-2018:3005https://access.redhat.com/errata/RHSA-2018:3006https://bugzilla.mozilla.org/show_bug.cgi?id=1483602https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlhttps://security.gentoo.org/glsa/201811-04https://usn.ubuntu.com/3801-1/https://www.debian.org/security/2018/dsa-4324https://www.mozilla.org/security/advisories/mfsa2018-26/https://www.mozilla.org/security/advisories/mfsa2018-27/http://www.securityfocus.com/bid/105718http://www.securitytracker.com/id/1041944https://access.redhat.com/errata/RHSA-2018:3005https://access.redhat.com/errata/RHSA-2018:3006https://bugzilla.mozilla.org/show_bug.cgi?id=1483602https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlhttps://security.gentoo.org/glsa/201811-04https://usn.ubuntu.com/3801-1/https://www.debian.org/security/2018/dsa-4324https://www.mozilla.org/security/advisories/mfsa2018-26/https://www.mozilla.org/security/advisories/mfsa2018-27/
2019-02-28
Published