CVE-2025-51864Public exploitNetwork attack vector

Account hijacking via reflected chat script injection

Published Jul 22, 2025 · Updated Jul 22, 2025

Reflected XSS in AIBOX LLM chat through 2025-05-27 allows remote attackers to steal JWT tokens and hijack user accounts. The chat interface renders attacker-controlled script from pasted text or LLM-generated output after fragile backend filtering, exposing tokens stored in the browser. A victim must paste the crafted text into a chat, after which the injected script can read session material and enable account takeover.

CVSS severity6.5
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in AIBOX LLM chat through 2025-05-27 allows remote attackers to steal JWT tokens and hijack user accounts. The chat interface renders attacker-controlled script from pasted text or LLM-generated output after fragile backend filtering, exposing tokens stored in the browser. A victim must paste the crafted text into a chat, after which the injected script can read session material and enable account takeover.

The record

CVE
CVE-2025-51864
Published
Jul 22, 2025
Updated
Jul 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 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:R/S:U/C:H/I:N/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.

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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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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