CVE-2026-13234Network attack vector

Script execution via unsanitized LLM previews

Published Jul 10, 2026 · Updated Jul 10, 2026

Cross-site scripting in Drupal AI before 1.2.17, 1.3.0 through 1.3.7, and 1.4.0 through 1.4.2 allows attackers to run scripts. Browser previews in AI Automators, AI Translate, AI API Explorer, and AI Content Suggestions render attacker-influenced HTML or Markdown generated by an LLM without sufficient neutralization. An attacker must inject text into an LLM prompt and a user must view the generated preview; resulting script execution can read or modify browser-accessible data, while some previews expose secret LLM-request communications.

CVSS severity6.1
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Drupal AI before 1.2.17, 1.3.0 through 1.3.7, and 1.4.0 through 1.4.2 allows attackers to run scripts. Browser previews in AI Automators, AI Translate, AI API Explorer, and AI Content Suggestions render attacker-influenced HTML or Markdown generated by an LLM without sufficient neutralization. An attacker must inject text into an LLM prompt and a user must view the generated preview; resulting script execution can read or modify browser-accessible data, while some previews expose secret LLM-request communications.

The record

CVE
CVE-2026-13234
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Avatar Uploader Project
Product
AI (Artificial Intelligence)
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0.0 <1.2.17
  2. Affected versionversion=1.3.0 <1.3.8
  3. Affected versionversion=1.4.0 <1.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Avatar Uploader Project · AI (Artificial Intelligence)version=0.0.0 <1.2.17; version=1.3.0 <1.3.8; version=1.4.0 <1.4.3

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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