Mozilla Firefox up to 61.x on Windows Outlook Email Message Drag / Drop 7pk security

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Mozilla Firefox up to 61.x on Windows and classified as critical. This affects an unknown part of the component Outlook Email Message Drag / Drop Handler. The manipulation as part of Email Message leads to 7pk security. This vulnerability is referenced as CVE-2018-12381. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.
Details
A vulnerability was found in Mozilla Firefox up to 61.x on Windows (Web Browser). It has been rated as critical. This issue affects an unknown part of the component Outlook Email Message Drag / Drop Handler. The manipulation as part of a Email Message leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are incorrectly interpreted as a URL. *Note: this issue only affects Windows operating systems with Outlook installed. Other operating systems are not affected.*. This vulnerability affects Firefox ESR < 60.2 and Firefox < 62.
The bug was discovered 09/05/2018. The weakness was published 10/18/2018 by Holger Fuhrmannek (Alex) as Bug 1435319 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2018-12381 since 06/14/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.
The vulnerability scanner Nessus provides a plugin with the ID 117291 (Mozilla Firefox < 62 Multiple Critical Vulnerabilities (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171700 (SUSE Enterprise Linux Security Update for MozillaFirefox, MozillaFirefox-branding-SLE, llvm4, mozilla-nspr, mozilla-nss, apache2-mod_nss (SUSE-SU-2018:3591-1)).
Upgrading to version 62.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (117291) and SecurityFocus (BID 105280†). Similar entries are available at VDB-125760, VDB-125761, VDB-125762 and VDB-125763. If you want to get the best quality for vulnerability data then you always have to consider 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: 5.8VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: 7pk securityCWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 117291
Nessus Name: Mozilla Firefox < 62 Multiple Critical Vulnerabilities (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Firefox 62.0
Timeline
06/14/2018 🔍09/05/2018 🔍
09/05/2018 🔍
09/05/2018 🔍
09/06/2018 🔍
10/18/2018 🔍
10/18/2018 🔍
10/19/2018 🔍
11/26/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: Bug 1435319
Researcher: Holger Fuhrmannek (Alex)
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-12381 (🔍)
GCVE (CVE): GCVE-0-2018-12381
GCVE (VulDB): GCVE-100-125765
SecurityFocus: 105280 - Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities
SecurityTracker: 1041610
See also: 🔍
Entry
Created: 10/19/2018 06:45Updated: 11/26/2025 08:54
Changes: 10/19/2018 06:45 (78), 04/05/2020 12:49 (6), 05/30/2023 10:44 (4), 11/26/2025 08:54 (15)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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