CVE-2023-41626Network attack vector

Cross-site permission access via unrestricted file upload

Published Sep 15, 2023 · Updated Sep 25, 2024

Unrestricted file upload in Gradio 3.27.0 allows remote attackers to store arbitrary files through the /upload interface. The public record states only that /upload accepts attacker-controlled files into the shared system temporary directory; it does not disclose the missing validation or access-control operation. Impact requires another vulnerable site on the same server to expose those files, limiting the documented consequence to cross-site access to website permissions.

CVSS severity4.8
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Gradio 3.27.0 allows remote attackers to store arbitrary files through the /upload interface. The public record states only that /upload accepts attacker-controlled files into the shared system temporary directory; it does not disclose the missing validation or access-control operation. Impact requires another vulnerable site on the same server to expose those files, limiting the documented consequence to cross-site access to website permissions.

The record

CVE
CVE-2023-41626
Published
Sep 15, 2023
Updated
Sep 25, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record 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

4.8NIST NVDCVSS:3.1/AV:N/AC:H/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

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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