ZeroHour
DashboardNewsCVEsExploitsIncidentsAIBriefAnalyticsEntitiesWatchlistIOCsAsk the feedSourcesFeeds & APIKiosk mode

Search: “html”

139 stories

Searchkeywordsmart Sortlatesthotimportancerelevance
DomainAllCyberAIWindow24h3d7d30dAllIn the wildImportant onlyShow duplicates
CategoryAllMalware 629Vulnerability 447Exploit / PoC 212Ransomware 174Threat actor 170Phishing & fraud 167Data breach 89Industry 26Research 24Policy & legal 23Advisory 18AI safety & security 17AI tools & infra 12Tools 5
SeverityAllcritical 520high 656medium 680low 130info 37

Telegram Desktop Flaw Lets Hidden JavaScript Exfiltrate Messages From HTML Exports

Telegram Desktop HTML export XSS (CVSS 8.2) let bot messages exfiltrate exported chats; fixed in 7.0.1 but old exports stay vulnerable.

ExPatch researchers found that Telegram Desktop versions 4.15.1 (March 2024) through 6.9.3 wrote bot inline-keyboard button text into HTML chat exports without escaping, allowing a bot to plant invisible JavaScript. When a user opened the export in a browser, the script could exfiltrate every message in that 1,000-message file, rewrite the displayed content, or fake a verification form. The flaw (rated CVSS 3.1 8.2) was fixed by commit 8457d13a in 6.9.4 beta (July 3, 2026) and 7.0.1 stable (July 14, 2026), but pre-fix exports remain dangerous since updating the app does not fix old files. No CVE identifier or Telegram security advisory exists, and no exploitation in the wild is claimed.

The Hacker Newsupdated · 1d agofirst · 1d agoVulnerability 2 sources1

Telegram Desktop Flaw Could Turn Old Chat Exports Into Data Theft Traps

ExPatch disclosed stored XSS in Telegram Desktop HTML export letting bot messages steal chat data when exports open in browsers.

ExPatch researchers Denis and Aleksander Rostilov found a stored XSS flaw (CVSS 8.2) where bot inline keyboard button text was written unescaped into HTML chat exports, executing attacker JavaScript in browsers. The payload can persist in chat history for months, exfiltrate messages, metadata, and local file paths, and rewrite the page, spreading via forwarded messages without bot membership. Telegram fixed it by applying SerializeString(), first stable fixed release 7.0.1 shipped July 14, 2026, but HTML exports created with vulnerable versions remain dangerous.

Security Affairs · 1d agoVulnerability1· 1 read

Okta Fixes Auth0 and Access Gateway Flaws Enabling XSS, Auth Bypass, and SQL Injection

Okta patched three flaws in Auth0 AD/LDAP Connector and Access Gateway, including a CVSS 9.0 stored XSS tracked as CVE-2026-85982.

Okta disclosed and patched three vulnerabilities on September 8, 2026 affecting the Auth0 AD/LDAP Connector and Okta Access Gateway. CVE-2026-85982 is a CVSS 9.0 stored XSS in the connector's admin panel caused by improper HTML encoding of directory search results and updater logs; CVE-2026-78626 is a CVSS 8.1 authorization bypass in Access Gateway Protected Rules; CVE-2026-78623 is a CVSS 7.7 SQL injection in advanced-mode datastores via unsanitized SAML assertion attributes. Fixes ship in connector version 8.0.0 and Access Gateway 2026.9.1; no exploitation has been reported.

Cyber Security Newsupdated · 5d agofirst · 5d agoVulnerability 2 sourcesCVE-2026-85982CVE-2026-78626CVE-2026-786231