CVE-2020-26285Network attack vector

Administrator RCE via unsafe widget template paths

Published Jan 21, 2021 · Updated Aug 4, 2024

Path traversal in OpenMage LTS before 19.4.10 and 20.0.0 through 20.0.4 allows remote authenticated users to execute server-side code. The generateLayoutUpdateXml method used administrator-controlled template paths and block references to resolve a template filename and build layout XML without rejecting special characters. An administrator needs both import/export and widget-instance permissions; exploitation places an executable file on the server and runs its code.

CVSS severity7.2
High
EPSS probability2.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in OpenMage LTS before 19.4.10 and 20.0.0 through 20.0.4 allows remote authenticated users to execute server-side code. The generateLayoutUpdateXml method used administrator-controlled template paths and block references to resolve a template filename and build layout XML without rejecting special characters. An administrator needs both import/export and widget-instance permissions; exploitation places an executable file on the server and runs its code.

The record

CVE
CVE-2020-26285
Published
Jan 21, 2021
Updated
Aug 4, 2024
Vendor
OpenMage
Product
OpenMage LTS
Classifications
CWE-434, CWE-22, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 21, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 19.4.10
  2. Affected versionversion=>= 20.0.0, < 20.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenMage · OpenMage LTSversion=< 19.4.10; version=>= 20.0.0, < 20.0.5

Published CVSS scores

8.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
7.2NISTCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NISTAV:N/AC:L/Au:S/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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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