Threat Intelligence Database
Comprehensive database of the latest cyber threats affecting organizations worldwide. Filter and search to find specific threat intelligence relevant to your organization.
Stop chasing alerts. Route them.
Start free, then upgrade once to turn Radar into an automated delivery engine for your security stack.
Custom feeds / Automations: email, Slack, webhooks, SIEM/MISP / API access (baseline limits)
API access activates after upgrading in Console -> Billing.
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.
Filter Threats
Narrow down the results by type, severity, or affected countries
Threat Intelligence
Click on any threat for detailed analysis and mitigation recommendations
0 CVE-2026-54743 is a cross-site scripting (XSS) vulnerability in LemmyNet's lemmy-ui prior to version 0.19.19-beta.1. The issue arises from improper sanitization of Markdown-rendered content, specifically when image alt text is used in video media fallback elements. This allows an approved member or remote federated instance to inject malicious JavaScript that executes in the viewer's browser context. The vulnerability is mitigated in production by Content Security Policy (CSP), but default self-hosted deployments lack CSP, making them vulnerable. The flaw is fixed in lemmy-ui version 0.19.19-beta.1. Join the discussion | CVE Database V5 | 08/19/2026, 20:18:43 UTC Added: 08/20/2026, 11:11:47 UTC |
Showing 1 to 1 of 1 result