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Mozilla: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects

🗓️ 11 Jul 2019 18:00:45Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

NPAPI plugins bypass CORS via 308 redirects on cross-origin POSTs, enabling CSRF in affected Firefox and Thunderbird versions.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
FreeBSD		mozilla -- multiple vulnerabilities
9 Jul 201900:00
–freebsd
IBM Security Bulletins		Security Bulletin: WebSphere Cast Iron and App Connect Professional are affected by vulnerabilities in busybox, arpwatch, apr, acpid, augeas, firefox, ctdb.
15 Dec 202107:41
–ibm
IBM Security Bulletins		Security Bulletin: Synthetic Playback Agent 8.1.4 is affected by multiple vulnerabilities
16 Sep 201909:00
–ibm
ALT Linux		Security fix for the ALT Linux 10 package firefox-esr version 68.0.1-alt1
19 Jul 201900:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package firefox-esr version 60.8.0-alt1
9 Jul 201900:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package thunderbird version 60.8.0-alt1
10 Jul 201900:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package thunderbird version 68.0-alt1
29 Aug 201900:00
–altlinux
AlpineLinux		CVE-2019-11712
23 Jul 201913:19
–alpinelinux
ArchLinux		[ASA-201907-4] firefox: multiple issues
17 Jul 201900:00
–archlinux
BDU FSTEC		The vulnerability of the NPAPI plugin in browsers such as Firefox ESR, Firefox, and the email client Thunderbird allows a hacker to perform cross-site forgery attacks.
20 Aug 201900:00
–bdu_fstec
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6.10i686firefox60.8.0-1.el6_10firefox-60.8.0-1.el6_10.i686.rpm
Red Hat Enterprise Linux6.10ppc64firefox60.8.0-1.el6_10firefox-60.8.0-1.el6_10.ppc64.rpm
Red Hat Enterprise Linux6.10s390xfirefox60.8.0-1.el6_10firefox-60.8.0-1.el6_10.s390x.rpm
Red Hat Enterprise Linux6.10x86_64firefox60.8.0-1.el6_10firefox-60.8.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux6.10i686firefox-debuginfo60.8.0-1.el6_10firefox-debuginfo-60.8.0-1.el6_10.i686.rpm
Red Hat Enterprise Linux6.10ppc64firefox-debuginfo60.8.0-1.el6_10firefox-debuginfo-60.8.0-1.el6_10.ppc64.rpm
Red Hat Enterprise Linux6.10s390xfirefox-debuginfo60.8.0-1.el6_10firefox-debuginfo-60.8.0-1.el6_10.s390x.rpm
Red Hat Enterprise Linux6.10x86_64firefox-debuginfo60.8.0-1.el6_10firefox-debuginfo-60.8.0-1.el6_10.x86_64.rpm

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25 Jun 2026 10:53Current
7.4High risk
Vulners AI Score7.4
CVSS 26.8
CVSS 38.8
EPSS0.01047
CWE-829
legacy pluginscross originpost requestsredirectscsrf attacksfirefoxthunderbirdvulnerabilities
3