Administrator-to-system command execution via CategoryTree eval
Published Aug 3, 2026 · Updated Aug 3, 2026
Eval injection in OpenEMR 8.2.0 and earlier allows remote authenticated users with administrator access to execute operating system commands. Tree.class.php builds PHP assignments from categories table fields, then passes the resulting string to eval() without neutralizing the id field. Exploitation requires administrator access to import SQL that changes categories.id from an integer to text and inserts a payload; a later CategoryTree instantiation runs it as the web server user.
Summary
What happened
Eval injection in OpenEMR 8.2.0 and earlier allows remote authenticated users with administrator access to execute operating system commands. Tree.class.php builds PHP assignments from categories table fields, then passes the resulting string to eval() without neutralizing the id field. Exploitation requires administrator access to import SQL that changes categories.id from an integer to text and inserts a payload; a later CategoryTree instantiation runs it as the web server user.
The record
- CVE
- CVE-2026-39932
- Published
- Aug 3, 2026
- Updated
- Aug 3, 2026
- Vendor
- OpenEMR Foundation
- Product
- OpenEMR
- Classifications
- CWE-95, T1059
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 3, 2026CVE publishedPublication date reported by the CVE source.
- Aug 3, 2026Record 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.
- Affected versionversion=0 <=8.2.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- Jiva Security CategoryTree eval injection proof of conceptfunctional · demonstrated
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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