Persistent PHP execution via eval-based deserialization
Published Jul 30, 2026 · Updated Jul 30, 2026
Code injection in e107 before 2.3.8 allows attackers with raw database write access to execute arbitrary PHP as the web-server user. The e_array::unserialize() method accepts any stored value beginning with array, prepends an assignment, and passes it to eval() when e_user_pref::load() materializes user_prefs. Attackers must first write raw bytes to user_prefs outside e107; each later preference load executes the persistent payload with web-server privileges.
Summary
What happened
Code injection in e107 before 2.3.8 allows attackers with raw database write access to execute arbitrary PHP as the web-server user. The e_array::unserialize() method accepts any stored value beginning with array, prepends an assignment, and passes it to eval() when e_user_pref::load() materializes user_prefs. Attackers must first write raw bytes to user_prefs outside e107; each later preference load executes the persistent payload with web-server privileges.
The record
- CVE
- CVE-2026-57859
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- e107
- Product
- e107
- Classifications
- CWE-94, CWE-502, T1059
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 30, 2026CVE publishedPublication date reported by the CVE source.
- Jul 30, 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 <=2.3.7
What conditions does exploitation require?
What is affected?
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
- GHSA-568x-w5qj-vr7c proof of conceptproof of concept · 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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