CVE-2025-51464Public exploitNetwork attack vector

Stored XSS via unrestricted Pyodide JavaScript bridge

Published Jul 22, 2025 · Updated Jul 22, 2025

Stored XSS in Aim 3.28.0 allows remote attackers to execute JavaScript in a victim's browser when the victim views a crafted report. The /api/reports endpoint stores the code field without sanitization, and Board.tsx executes aim-tagged blocks through unrestricted pyodide.code.run_js(). Exploitation requires another user to view the stored report and permits code to read report data or issue requests with that user's browser session.

CVSS severity8.8
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Aim 3.28.0 allows remote attackers to execute JavaScript in a victim's browser when the victim views a crafted report. The /api/reports endpoint stores the code field without sanitization, and Board.tsx executes aim-tagged blocks through unrestricted pyodide.code.run_js(). Exploitation requires another user to view the stored report and permits code to read report data or issue requests with that user's browser session.

The record

CVE
CVE-2025-51464
Published
Jul 22, 2025
Updated
Jul 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
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

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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