CVE-2025-43714Public exploitNetwork attack vector

HTML injection via inline SVG rendering

Published May 19, 2025 · Updated May 19, 2025

HTML injection in ChatGPT through 2025-03-30 allows remote attackers to place deceptive content in conversations through crafted SVG markup. ChatGPT stores SVG or image markup supplied inside code blocks and later inserts it into the rendered conversation instead of preserving it as inert text. The markup appears when a conversation is reopened or accessed through a shared link, enabling phishing or disruptive visual effects without demonstrated JavaScript execution.

CVSS severity6.5
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in ChatGPT through 2025-03-30 allows remote attackers to place deceptive content in conversations through crafted SVG markup. ChatGPT stores SVG or image markup supplied inside code blocks and later inserts it into the rendered conversation instead of preserving it as inert text. The markup appears when a conversation is reopened or accessed through a shared link, enabling phishing or disruptive visual effects without demonstrated JavaScript execution.

The record

CVE
CVE-2025-43714
Published
May 19, 2025
Updated
May 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1566.002Spearphishing Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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