CVE-2026-34415 Details
Description
Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.
An incomplete input validation vulnerability has been identified in the elFinder connector endpoint of Xerte Online Toolkits, affecting versions through 3.15. This vulnerability allows unauthenticated attackers to upload malicious PHP code by exploiting an incorrect regex pattern that fails to block certain PHP-executable extensions, specifically .php4. This flaw can be combined with authentication bypass and path traversal vulnerabilities to execute arbitrary operating system commands on the server.
Users are advised to update to Xerte Online Toolkits version 3.15.0 or later, and to run the upgrade.php script after updating. Instructions for downloading the latest version can be found on the Xerte Community Downloads page.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 22, 2026CISA-ADP
Assessed Apr 22, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-184 | Incomplete List of Disallowed Inputs | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Xerte Online Toolkits | <= 3.15 3.14.0 (semver) <= 3.14 <= 3.13 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | CVE Modified | [email protected] |
| Apr 22, 2026 | New CVE Received | [email protected] |
Volerion