CVE-2016-9903
Mozilla's add-ons SDK had a world-accessible resource with an HTML injection vulnerability.
Does this matter?
Lower severity and a low EPSS score (1.12%). Track it; it rarely justifies an emergency change on its own.
Description
Mozilla's add-ons SDK had a world-accessible resource with an HTML injection vulnerability. If an additional vulnerability allowed this resource to be loaded as a document it could allow injecting content and script into an add-on's context. This vulnerability affects Firefox < 50.1.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.12% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
EPSS 1.1% 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://www.securityfocus.com/bid/94883Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037461Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1315435Issue Tracking, Patch, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-94/Vendor Advisory
- http://www.securityfocus.com/bid/94883Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037461Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1315435Issue Tracking, Patch, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-94/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.