CVSS 3.1 Score 4.3 of 10 (medium)


Published Oct 25, 2023
Updated: Nov 1, 2023
CWE ID 1021


CVE-2023-5721 is a cyber vulnerability that affects certain browser prompts and dialogs in Firefox, Firefox ESR, and Thunderbird. The vulnerability allows these prompts and dialogs to be unintentionally activated or dismissed by the user due to an insufficient activation delay. The affected products include various versions of Firefox and Thunderbird. To remediate this vulnerability, users should update their browsers to Firefox version 119 or later, Firefox ESR version 115.4 or later, and Thunderbird version 115.4.1 or later. The potential danger of this vulnerability to organizations is considered medium, with a base severity rating of 4.3 out of 10. The exploitability score is 2.8 out of 10, indicating a moderate level of exploitability. The impact score for integrity is low, while the impact on confidentiality is none. User interaction is required for exploitation, and the attack vector is through the network.

Explore Beyond the CVE Basics with Recorded Future's Vulnerability Intelligence

Note: This is just a basic overview providing quick insights into CVE-2023-5721 information. Gain full access to comprehensive CVE data, risk scores, prioritization, and mitigation data through Recorded Future's Vulnerability Intelligence:
  • Prioritize with Risk-Based Scoring
  • Explore the Extensive Vulnerability Database
  • Receive Early Alerts on Emerging CVEs
  • Focus on Critical Exploitable Vulnerabilities
  • Streamline Remediation with Integration Options