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Fencer Vulns
high 8.8

CVE-2025-51464 json

Aim vulnerable to Cross-site Scripting

published 2025-07-22 15 mo ago modified 2026-09-10 1 mo ago also GHSA-gmvv-rj92-9w35 , PYSEC-2026-1087 , EUVD-2025-22341

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Cross-site Scripting (XSS) in aimhubio Aim 3.28.0 allows remote attackers to execute arbitrary JavaScript in victims browsers via malicious Python code submitted to the /api/reports endpoint, which is interpreted and executed by Pyodide when the report is viewed. No sanitisation or sandbox restrictions prevent JavaScript execution via pyodide.code.run_js().

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
15 mo ago

Exploit prediction

0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/aimhubio/aim/pull/3333 referenced PoC, tagged "exploit" by a source, unverified
  • gecko.security https://www.gecko.security/blog/cve-2025-51464 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi aim
<=3.30.0.dev20250611
no fix listed

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.