CVE-2026-6572 | Collabora KodExplorer up to 4.52 fileUpload Endpoint share.class.php improper authorization

VDB-358206 · SUBMIT #789988 · CVE-2026-6572 COLLABORA KODEXPLORER UP TO 4.52 FILEUPLOAD ENDPOINT SHARE.CLASS.PHP IMPROPER AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability, which was classified as critical, was found in Collabora KodExplorer up to 4.52. This affects an unknown part of the file /app/controller/share.class.php of the component fileUpload Endpoint. The manipulation of the argument fileUpload results in improper authorization. This vulnerability is identified as CVE-2026-6572. The attack can be executed remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in Collabora KodExplorer up to 4.52. It has been classified as critical. Affected is some unknown functionality of the file /app/controller/share.class.php of the component fileUpload Endpoint. The manipulation of the argument fileUpload with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The advisory is available at vulnplus-note.wetolink.com. This vulnerability is traded as CVE-2026-6572. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project. The exploit is shared for download at vulnplus-note.wetolink.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:app/controller/share.class.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Collabora Name KodExplorer Version 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 4.28 4.29 4.30 4.31 4.32 4.33 4.34 4.35 4.36 4.37 4.38 4.39 4.40 4.41 4.42 4.43 4.44 4.45 4.46 4.47 4.48 4.49 4.50 4.51 4.52 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.6 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.6 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 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: Improper authorization CWE: CWE-285 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/18/2026 Advisory disclosed 04/18/2026 +0 days VulDB entry created 04/18/2026 +0 days VulDB entry last update Sourcesinfo Advisory: vulnplus-note.wetolink.com Status: Not defined CVE: CVE-2026-6572 (🔒) GCVE (CVE): GCVE-0-2026-6572 GCVE (VulDB): GCVE-100-358206 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/18/2026 21:12 Changes: 04/18/2026 21:12 (57) Complete: 🔍 Submitter: vulnplusbot Cache ID: 99:431:101 Submitinfo Accepted Submit #789988: KodExplorer 4.52 Business Logic Bypass (by vulnplusbot) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸