CVE-2026-34413 | thexerteproject xerteonlinetoolkits up to 3.13.0/3.14.0/3.15.0 elFinder Connector Endpoint connector.php exposure of sensitive system information to an unauthorized control sphere (ID 1527)

VDB-359045 · CVE-2026-34413 · ID 1527 THEXERTEPROJECT XERTEONLINETOOLKITS UP TO 3.13.0/3.14.0/3.15.0 ELFINDER CONNECTOR ENDPOINT CONNECTOR.PHP EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.8 $0-$5k 2.25+ Summaryinfo A vulnerability, which was classified as critical, has been found in thexerteproject xerteonlinetoolkits up to 3.13.0/3.14.0/3.15.0. Impacted is an unknown function of the file /editor/elfinder/php/connector.php of the component elFinder Connector Endpoint. The manipulation leads to exposure of sensitive system information to an unauthorized control sphere. This vulnerability is referenced as CVE-2026-34413. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in thexerteproject xerteonlinetoolkits up to 3.13.0/3.14.0/3.15.0. It has been rated as critical. This issue affects an unknown functionality of the file /editor/elfinder/php/connector.php of the component elFinder Connector Endpoint. The manipulation with an unknown input leads to a exposure of sensitive system information to an unauthorized control sphere vulnerability. Using CWE to declare the problem leads to CWE-497. The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does. Impacted is confidentiality, integrity, and availability. The summary by CVE is: Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read. The weakness was published by bootstrapbool as 1527. The advisory is shared at xerte.org.uk. The identification of this vulnerability is CVE-2026-34413 since 03/27/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue. By approaching the search of inurl:editor/elfinder/php/connector.php it is possible to find vulnerable targets with Google Hacking. Upgrading eliminates this vulnerability. The upgrade is hosted for download at xerte.org.uk. Applying the patch 02661be88cc369325ea01b508086bde7fbfec805 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Project Management Software Vendor thexerteproject Name xerteonlinetoolkits Version 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.13.0 3.14 3.14.0 3.15.0 License open-source Website Product: https://github.com/thexerteproject/xerteonlinetoolkits/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.9 VulDB Meta Temp Score: 7.8 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.6 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Exposure of sensitive system information to an unauthorized control sphere CWE: CWE-497 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: xerte.org.uk Patch: 02661be88cc369325ea01b508086bde7fbfec805 Timelineinfo 03/27/2026 CVE reserved 04/22/2026 +25 days Advisory disclosed 04/22/2026 +0 days VulDB entry created 04/22/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: 1527 Researcher: bootstrapbool Status: Confirmed CVE: CVE-2026-34413 (🔒) GCVE (CVE): GCVE-0-2026-34413 GCVE (VulDB): GCVE-100-359045 Entryinfo Created: 04/22/2026 22:26 Changes: 04/22/2026 22:26 (81) Complete: 🔍 Cache ID: 99:7A9:101 Discussion No comments yet. 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