CVE-2021-29961
Severity Score
4.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.
Al estilizar y renderizar un elemento "(select)" de gran tamaño, Firefox no aplicaba un recorte correcto que permitía a un atacante pintar sobre la interfaz de usuario. Esta vulnerabilidad afecta a Firefox versiones anteriores a 89
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-01 CVE Reserved
- 2021-06-24 CVE Published
- 2024-03-09 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-863: Incorrect Authorization
CAPEC
References (3)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1700235 | 2021-09-20 | |
| https://security.gentoo.org/glsa/202107-09 | 2021-09-20 | |
| https://www.mozilla.org/security/advisories/mfsa2021-23 | 2021-09-20 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | >= 78.11.0 < 89.0 Search vendor "Mozilla" for product "Firefox" and version " >= 78.11.0 < 89.0" | - |
Affected
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