CVE-2018-18495
published 2019-02-28CVE-2018-18495: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an…
PriorityP430medium6.5CVSS 3.0
AVNACLPRNUIRSUCHINAN
EPSS
1.67%
73.9th percentile
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | firefox | < firefox 64.0-1 (sid) | firefox 64.0-1 (sid) |
| mozilla | firefox | < 64.0 | 64.0 |
| mozilla | firefox | >= 0 < 64.0+build3-0ubuntu0.14.04.1 | 64.0+build3-0ubuntu0.14.04.1 |
| mozilla | firefox | >= 0 < 64.0+build3-0ubuntu0.16.04.1 | 64.0+build3-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 64.0+build3-0ubuntu0.18.04.1 | 64.0+build3-0ubuntu0.18.04.1 |
| mozilla | firefox | >= unspecified < 64 | 64 |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
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 vulnerabilities
vendor_ubuntu·2018-12-11·CVSS 9.8
CVE-2018-12405 [CRITICAL] 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 same-origin
restritions, or execute arbitrary code. (CVE-2018-12405, CVE-2018-12406,
CVE-2018-12407, CVE-2018-17466, CVE-2018-18492, CVE-2018-18493,
CVE-2018-18494, CVE-2018-18498)
Multiple security issues were discovered in WebExtensions. If a user were
tricked in to installing a specially crafted extension, an attacker could
potentially exploit these to open privileged pages, or bypass other
security restrictions. (CVE-2018-18495, CVE-2018-18497)
Instruct
Red Hat
firefox: WebExtension content scripts can be loaded in about: pages
vendor_redhat·2018-12-11·CVSS 6.5
CVE-2018-18495 [MEDIUM] CWE-20 firefox: WebExtension content scripts can be loaded in about: pages
firefox: WebExtension content scripts can be loaded in about: pages
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
Package: firefox (Red Hat Enterprise Linux 6) - Will not fix
Package: firefox (Red Hat Enterprise Linux 7) - Will not fix
Package: firefox (Red Hat Enterprise Linux 8) - Will not fix
Debian
CVE-2018-18495: firefox - WebExtension content scripts can be loaded into about: pages in some circumstanc...
vendor_debian·2018·CVSS 6.5
CVE-2018-18495 [MEDIUM] CVE-2018-18495: firefox - WebExtension content scripts can be loaded into about: pages in some circumstanc...
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
Scope: local
sid: resolved (fixed in 64.0-1)
GHSA
GHSA-c244-84j9-388q: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions
ghsa_unreviewed·2022-05-13
CVE-2018-18495 [MEDIUM] CWE-732 GHSA-c244-84j9-388q: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
OSV
CVE-2018-18495: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions
osv·2018-12-11·CVSS 6.5
CVE-2018-18495 [MEDIUM] CVE-2018-18495: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.
OSV
firefox vulnerabilities
osv·2018-12-11·CVSS 9.8
CVE-2018-12405 [CRITICAL] 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 same-origin
restritions, or execute arbitrary code. (CVE-2018-12405, CVE-2018-12406,
CVE-2018-12407, CVE-2018-17466, CVE-2018-18492, CVE-2018-18493,
CVE-2018-18494, CVE-2018-18498)
Multiple security issues were discovered in WebExtensions. If a user were
tricked in to installing a specially crafted extension, an attacker could
potentially exploit these to open privileged pages, or bypass other
security restrictions. (CVE-2018-18495, CVE-2018-18497)
No detection rules found.
No public exploits indexed.
http://www.securityfocus.com/bid/106167https://bugzilla.mozilla.org/show_bug.cgi?id=1427585https://usn.ubuntu.com/3844-1/https://www.mozilla.org/security/advisories/mfsa2018-29/http://www.securityfocus.com/bid/106167https://bugzilla.mozilla.org/show_bug.cgi?id=1427585https://usn.ubuntu.com/3844-1/https://www.mozilla.org/security/advisories/mfsa2018-29/
2019-02-28
Published