Authenticated command execution via blacklist bypass
Published Jul 27, 2026 · Updated Jul 27, 2026
Remote command execution in Dede CMS 5.7.118 and earlier allows remote authenticated users to run OS commands via file_manage_control.php. The save path reverses addslashes escaping with stripslashes, omits get_defined_functions from its blacklist, and writes restored str input into a PHP file. A valid backend file-manager session and CSRF token are required; requesting the saved file executes PHP system functions with web-server privileges.
Summary
What happened
Remote command execution in Dede CMS 5.7.118 and earlier allows remote authenticated users to run OS commands via file_manage_control.php. The save path reverses addslashes escaping with stripslashes, omits get_defined_functions from its blacklist, and writes restored str input into a PHP file. A valid backend file-manager session and CSRF token are required; requesting the saved file executes PHP system functions with web-server privileges.
The record
- CVE
- CVE-2026-51078
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-200, T1059.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 27, 2026CVE publishedPublication date reported by the CVE source.
- Jul 27, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- CVE-2026-51078 proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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