CVE-2018-12396
N/A
Published: February 28, 2019 at 06:00 PM UTC
Updated: June 17, 2026 at 01:37 AM UTC
10 products affected across 4 vendorsDebian LinuxUbuntu LinuxFirefox
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Severity
N/A
Exploit prediction
EPSS 2%
Description
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 63v < 63.0
Affected range stops below 63, so it looks safe — our inference, not a vendor statement
Affected range stops below 63.0, so it looks safe — our inference, not a vendor statement
v < 60.3
Affected range stops below 60.3, so it looks safe — our inference, not a vendor statement
95%
Enterprise Linux Server· Red Hatrubygems
95%95%
95%
95%
95%
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (11)
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/105718VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1041944Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3005Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3006x_refsource_CONFIRMBroken LinkIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1483602Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201811-04Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3801-1/Quick Info
StatusMODIFIED
CWE
CWE-732
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