CVE-2020-29592Public exploitNetwork attack vector

Executable upload via bypassed file-type restrictions

Published Apr 14, 2021 · Updated Aug 4, 2024

Unrestricted file upload in Orchard before 1.10 allows remote attackers to store dangerous executables through TinyMCE upload components. The upload path disregards the Media settings allowlist, so components using TinyMCE accept executable file types that the site configuration forbids. No authentication or user interaction is required; the established consequence is unauthorized executable storage, while code execution is not expressly documented.

CVSS severity9.8
Critical
EPSS probability2.18%
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 Orchard before 1.10 allows remote attackers to store dangerous executables through TinyMCE upload components. The upload path disregards the Media settings allowlist, so components using TinyMCE accept executable file types that the site configuration forbids. No authentication or user interaction is required; the established consequence is unauthorized executable storage, while code execution is not expressly documented.

The record

CVE
CVE-2020-29592
Published
Apr 14, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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