Mozilla Firefox up to 50 Pocket Server Data Origin origin validation

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Mozilla Firefox up to 50. This affects an unknown function of the component Pocket Server Data Handler. Executing a manipulation can lead to origin validation (Origin). This vulnerability appears as CVE-2016-9902. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.
Details
A vulnerability was found in Mozilla Firefox up to 50 (Web Browser). It has been declared as critical. This vulnerability affects an unknown code block of the component Pocket Server Data Handler. The manipulation with an unknown input leads to a origin validation vulnerability (Origin). The CWE definition for the vulnerability is CWE-346. The product does not properly verify that the source of data or communication is valid. As an impact it is known to affect confidentiality, integrity, and availability.
The bug was discovered 12/13/2016. The weakness was presented 12/13/2016 by Christian Holler (Nils) as MFSA 2016-94 as confirmed security advisory (Website). The advisory is available at mozilla.org. This vulnerability was named CVE-2016-9902 since 12/07/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.
The vulnerability scanner Nessus provides a plugin with the ID 900006 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236208 (Red Hat Update Firefox Security (RHSA-2016:2946)).
Upgrading to version 50.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (900006) and SecurityFocus (BID 94885†). See VDB-94489, VDB-94490, VDB-94491 and VDB-94492 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.9VulDB Meta Temp Score: 6.7
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: OriginClass: Origin validation / Origin
CWE: CWE-346 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 900006
Nessus File: 🔍
OpenVAS ID: 881932
OpenVAS Name: CentOS Update for thunderbird CESA-2016:2973 centos7
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox 50.1
Timeline
12/07/2016 🔍12/13/2016 🔍
12/13/2016 🔍
12/13/2016 🔍
12/13/2016 🔍
12/15/2016 🔍
06/11/2018 🔍
11/25/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: MFSA 2016-94
Researcher: Christian Holler (Nils)
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-9902 (🔍)
GCVE (CVE): GCVE-0-2016-9902
GCVE (VulDB): GCVE-100-94498
OVAL: 🔍
SecurityFocus: 94885 - Mozilla Firefox MFSA2016-94 and MFSA2016-95 Multiple Security Vulnerabilities
SecurityTracker: 1037461
See also: 🔍
Entry
Created: 12/15/2016 10:45Updated: 11/25/2025 23:18
Changes: 12/15/2016 10:45 (73), 07/07/2019 22:00 (7), 10/08/2022 17:12 (4), 10/08/2022 17:19 (1), 11/25/2025 23:18 (15)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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