CVE-2016-9902
The Pocket toolbar button, once activated, listens for events fired from it's own pages but does not verify the origin of incoming events.…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
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.
Timeline
ID reserved
By mozilla
- 18 months later
· 18 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.3% · top 30% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Pocket extension does not validate the origin of events
- CWE-346 (opens in a new tab)All about CWE-346 and its CVEs
Affected products
- affected unspecified – < 45.6
- affected unspecified – < 50.1
References (8)
- https://www.mozilla.org/security/advisories/mfsa2016-94/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2016-95/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1320039 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 94885 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1037461 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-201701-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2016:2973 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2016:2946 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-9902)Record last updated .