CVE-2016-9902
This allows content from other origins to fire events and inject content and commands into the Pocket context.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Pocket toolbar button, once activated, listens for events fired from it's own pages but does not verify the origin of incoming events. This allows content from other origins to fire events and inject content and commands into the Pocket context. Note: this issue does not affect users with e10s enabled. This vulnerability affects Firefox ESR < 45.6 and Firefox < 50.1.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.29% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-346
- Affected
- redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · mozilla/firefox
- Source
- security@mozilla.org
EPSS 1.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://rhn.redhat.com/errata/RHSA-2016-2946.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2973.htmlThird Party Advisory
- http://www.securityfocus.com/bid/94885Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037461Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1320039Exploit, Issue Tracking, Patch
- https://security.gentoo.org/glsa/201701-15Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-94/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-95/Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2946.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2973.htmlThird Party Advisory
- http://www.securityfocus.com/bid/94885Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037461Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1320039Exploit, Issue Tracking, Patch
- https://security.gentoo.org/glsa/201701-15Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-94/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-95/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.