Telegram Desktop Flaw Lets Hidden JavaScript Exfiltrate Messages From HTML Exports
A flaw in Telegram Desktop let a bot's message plant hidden JavaScript inside chats that users exported to HTML files, security researchers at ExPatch said in a writeup published on September 12. In Telegram, the message looked ordinary, with a link button, and the script ran only when someone opened the export file in a web browser. It could then copy every message in that file to
What happened
A flaw in Telegram Desktop let a bot's message plant hidden JavaScript inside chats that users exported to HTML files, security researchers at ExPatch said in a writeup published on September 12. In Telegram, the message looked ordinary, with a link button, and the script ran only when someone opened the export file in a web browser. It could then copy every message in that file to
Why it matters
The development may change operating conditions or market expectations around Security. Further confirmation and measurable outcomes matter.
Affected entities
View evidence
1 reports · 1 original report · 1 independent
- The Hacker NewsPrimary source · Supports · EN · 100%Telegram Desktop Flaw Lets Hidden JavaScript Exfiltrate Messages From HTML Exports ↗
Claims
- Telegram Desktop Flaw Lets Hidden JavaScript Exfiltrate Messages From HTML Exports Observed
Conflicts
No material conflict detected in the available evidence.
Timeline
- First reported
Market move following event
Market reaction is not yet available for this asset and time window.