Attacker Value
Unknown
0
CVE-2020-26956
0
CVE ID
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CVE-2020-26956
(Last updated November 28, 2024) ▾
MITRE ATT&CK
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Description
In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
6.1 Medium
Impact Score:
2.7
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Changed
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
None
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Firefox < 83
Firefox ESR < 78.5
Thunderbird < 78.5
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- mozilla
Products
- firefox,
- firefox esr,
- thunderbird
References
Miscellaneous
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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