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CVE-2021-38509
AST
Medium

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be …

CVSS
6.1
Medium
EPSS
0.02
p72
Published
2021-01-01
Updated
2021-01-01
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.

Tags · CWE
Pre-auth
CWE-1021
CAPEC-103
CAPEC-181
CAPEC-222
CAPEC-504
CAPEC-506
CAPEC-587
CAPEC-654
Affected products
FirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefox-esr
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Timeline
2021-01-01
Published
2021-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: R
Required (R)
Scope
S: C
Changed (C)
Confidentiality Impact
C: L
Low (L)
Integrity Impact
I: L
Low (L)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.016 · p72
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-504 · CWE-1021
└ via CAPEC-654 · CWE-1021
└ via CAPEC-654 · CWE-1021
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
ProductVendorStatus
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefox-esrTracked
Showing first 20 of 52
Source databases
AST
DEB
CVE
RED
UBU
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