CVE-2021-38509

 

Published at: - 08-12-2021 11:15

Last modified: - 24-09-2022 03:03

Total changes: - 14

Description

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

 

Verification logic

 

Reference

• https://www.mozilla.org/security/advisories/mfsa2021-50/
• https://www.mozilla.org/security/advisories/mfsa2021-49/
• https://www.mozilla.org/security/advisories/mfsa2021-48/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1718571
• DSA-5026-Third Party Advisory
• [debian-lts-announce] 20211229 [SECURITY] [DLA 2863-1] firefox-esr security update-Mailing List, Third Party Advisory
• DSA-5034-Mailing List, Third Party Advisory
• [debian-lts-announce] 20220104 [SECURITY] [DLA 2874-1] thunderbird security update-Mailing List, Third Party Advisory
• GLSA-202202-03-Third Party Advisory
• GLSA-202208-14-

 

Keywords

NVD

 

CVE-2021-38509

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures