Back to search
CVE-2021-23984
Published: Mar 31, 2021
Modified: Aug 3, 2024
PUBLISHED
Description
A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox ESR | affected unspecified - < 78.9 |
Mozilla | Firefox | affected unspecified - < 87 |
Mozilla | Thunderbird | affected unspecified - < 78.9 |
References
https://www.mozilla.org/security/advisories/mfsa2021-10/
x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2021-12/
x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2021-11/
x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1693664
x_refsource_MISC
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now