Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization
Summary
| CVE | CVE-2026-6572 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-19 13:16:45 UTC |
| Updated | 2026-04-19 13:16:45 UTC |
| Description | A security vulnerability has been detected in Collabora KodExplorer up to 4.52. Affected by this issue is some unknown functionality of the file /app/controller/share.class.php of the component fileUpload Endpoint. The manipulation of the argument fileUpload leads to improper authorization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way. |
Risk And Classification
Primary CVSS: v4.0 6.3 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-266 | CWE-285 | CWE-285 Improper Authorization | CWE-266 Incorrect Privilege Assignment
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 6.3 | MEDIUM | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/C... |
| 4.0 | CNA | DECLARED | 6.3 | MEDIUM | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |
| 3.1 | [email protected] | Primary | 5.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | DECLARED | 5.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| 3.0 | CNA | DECLARED | 5.6 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| 2.0 | [email protected] | Secondary | 5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P | |
| 2.0 | CNA | DECLARED | 5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
LowIntegrity
LowAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Collabora | KodExplorer | affected 4.0 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.1 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.2 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.3 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.4 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.5 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.6 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.7 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.8 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.9 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.10 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.11 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.12 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.13 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.14 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.15 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.16 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.17 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.18 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.19 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.20 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.21 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.22 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.23 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.24 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.25 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.26 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.27 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.28 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.29 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.30 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.31 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.32 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.33 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.34 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.35 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.36 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.37 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.38 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.39 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.40 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.41 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.42 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.43 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.44 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.45 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.46 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.47 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.48 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.49 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.50 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.51 | Not specified |
| CNA | Collabora | KodExplorer | affected 4.52 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| vuldb.com/vuln/358206/cti | [email protected] | vuldb.com | |
| vuldb.com/submit/789988 | [email protected] | vuldb.com | |
| vuldb.com/vuln/358206 | [email protected] | vuldb.com | |
| vulnplus-note.wetolink.com/share/PLCI4v0BWaF8 | [email protected] | vulnplus-note.wetolink.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: vulnplusbot (VulDB User) (en)
CNA: VulDB CNA Team (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-18T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-04-18T02:00:00.000Z | VulDB entry created |
| CNA | 2026-04-18T21:12:43.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.