CVE-2019-3639
MWG UI: Cross-Frame Scripting vulnerability
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows remote attackers to conduct clickjacking attacks via a crafted web page that contains an iframe via does not send an X-Frame-Options HTTP header.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
MWG UI: Cross-Frame Scripting vulnerability
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows remote attackers to conduct clickjacking attacks via a crafted web page that contains an iframe via does not send an X-Frame-Options HTTP header.
- Record
CVE-2019-3639- CVSS 3.0
- 7.1 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2019-13274
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows remote attackers to conduct clickjacking attacks via a crafted web page that contains an iframe via does not send an X-Frame-Options HTTP header.
- Record
EUVD-2019-13274- CVSS 3.0
- 7.1 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xc8j-x355-h9cr No score
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to...
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows remote attackers to conduct clickjacking attacks via a crafted web page that contains an iframe via does not send an X-Frame-Options HTTP header.
- Record
GHSA-xc8j-x355-h9cr- Updated
- 2026-11-02
NVD
Clickjack vulnerability in Adminstrator web console in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows remote attackers to conduct clickjacking attacks via a crafted web page that contains an iframe via does not send an X-Frame-Options HTTP header.
- Record
CVE-2019-3639- CVSS 3.0
- 7.1 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-1021
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-3639 is a high vulnerability (CVSS 7.1) in Mcafee Web Gateway, published August 14, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.24%, the 69th percentile. No source names a fixed version.