CVE-2026-6572

Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization

Published Apr 19, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Collabora

KodExplorer

affected

Version	Status	Constraints
`4.0`	affected	—
`4.1`	affected	—
`4.2`	affected	—
`4.3`	affected	—
`4.4`	affected	—
`4.5`	affected	—
`4.6`	affected	—
`4.7`	affected	—
`4.8`	affected	—
`4.9`	affected	—
`4.10`	affected	—
`4.11`	affected	—
`4.12`	affected	—
`4.13`	affected	—
`4.14`	affected	—
`4.15`	affected	—
`4.16`	affected	—
`4.17`	affected	—
`4.18`	affected	—
`4.19`	affected	—
`4.20`	affected	—
`4.21`	affected	—
`4.22`	affected	—
`4.23`	affected	—
`4.24`	affected	—
`4.25`	affected	—
`4.26`	affected	—
`4.27`	affected	—
`4.28`	affected	—
`4.29`	affected	—
`4.30`	affected	—
`4.31`	affected	—
`4.32`	affected	—
`4.33`	affected	—
`4.34`	affected	—
`4.35`	affected	—
`4.36`	affected	—
`4.37`	affected	—
`4.38`	affected	—
`4.39`	affected	—
`4.40`	affected	—
`4.41`	affected	—
`4.42`	affected	—
`4.43`	affected	—
`4.44`	affected	—
`4.45`	affected	—
`4.46`	affected	—
`4.47`	affected	—
`4.48`	affected	—
`4.49`	affected	—
`4.50`	affected	—
`4.51`	affected	—
`4.52`	affected	—

No data.

Vendor Product Versions

Collabora

Kodexplorer

Version	Status	Scheme	Platform
`[4.0,4.0]`	affected	generic	—
`[4.1,4.1]`	affected	generic	—
`[4.2,4.2]`	affected	generic	—
`[4.3,4.3]`	affected	generic	—
`[4.4,4.4]`	affected	generic	—
`[4.5,4.5]`	affected	generic	—
`[4.6,4.6]`	affected	generic	—
`[4.7,4.7]`	affected	generic	—
`[4.8,4.8]`	affected	generic	—
`[4.9,4.9]`	affected	generic	—
`[4.10,4.10]`	affected	generic	—
`[4.11,4.11]`	affected	generic	—
`[4.12,4.12]`	affected	generic	—
`[4.13,4.13]`	affected	generic	—
`[4.14,4.14]`	affected	generic	—
`[4.15,4.15]`	affected	generic	—
`[4.16,4.16]`	affected	generic	—
`[4.17,4.17]`	affected	generic	—
`[4.18,4.18]`	affected	generic	—
`[4.19,4.19]`	affected	generic	—
`[4.20,4.20]`	affected	generic	—
`[4.21,4.21]`	affected	generic	—
`[4.22,4.22]`	affected	generic	—
`[4.23,4.23]`	affected	generic	—
`[4.24,4.24]`	affected	generic	—
`[4.25,4.25]`	affected	generic	—
`[4.26,4.26]`	affected	generic	—
`[4.27,4.27]`	affected	generic	—
`[4.28,4.28]`	affected	generic	—
`[4.29,4.29]`	affected	generic	—
`[4.30,4.30]`	affected	generic	—
`[4.31,4.31]`	affected	generic	—
`[4.32,4.32]`	affected	generic	—
`[4.33,4.33]`	affected	generic	—
`[4.34,4.34]`	affected	generic	—
`[4.35,4.35]`	affected	generic	—
`[4.36,4.36]`	affected	generic	—
`[4.37,4.37]`	affected	generic	—
`[4.38,4.38]`	affected	generic	—
`[4.39,4.39]`	affected	generic	—
`[4.40,4.40]`	affected	generic	—
`[4.41,4.41]`	affected	generic	—
`[4.42,4.42]`	affected	generic	—
`[4.43,4.43]`	affected	generic	—
`[4.44,4.44]`	affected	generic	—
`[4.45,4.45]`	affected	generic	—
`[4.46,4.46]`	affected	generic	—
`[4.47,4.47]`	affected	generic	—
`[4.48,4.48]`	affected	generic	—
`[4.49,4.49]`	affected	generic	—
`[4.50,4.50]`	affected	generic	—
`[4.51,4.51]`	affected	generic	—
`[4.52,4.52]`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.323% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://vuldb.com/submit/789988
https://vuldb.com/vuln/358206
https://vuldb.com/vuln/358206/cti
https://vulnplus-note.wetolink.com/share/PLCI4v0BWaF8

History

Apr 20, 2026 4:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Apr 20, 2026 3:15 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Collabora Collabora kodexplorer
Vendors & Products		Collabora Collabora kodexplorer

Apr 19, 2026 12:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization
Weaknesses		CWE-266 CWE-285
References		https://vuldb.com/submit/789988 https://vuldb.com/vuln/358206 https://vuldb.com/vuln/358206/cti https://vulnplus-note.wetolink.com/share/PLCI4v0BWaF8
Metrics		cvssV2_0 `{'score': 5.1, 'vector': 'AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 5.6, 'vector': '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'}` cvssV3_1 `{'score': 5.6, 'vector': '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'}` cvssV4_0 `{'score': 6.3, 'vector': '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'}`

Subscriptions

Collabora Kodexplorer

Weaknesses

Sources

CVE record Updated: Apr 20, 2026, 4:11 PM

Status: PUBLISHED
Assigner: VulDB
Published: Apr 19, 2026, 12:15 PM
Updated: Apr 20, 2026, 4:11 PM
Reserved: Apr 18, 2026, 7:07 PM

View source JSON

Vulnrichment Updated: Apr 20, 2026, 4:11 PM

Updated: Apr 20, 2026, 4:11 PM

JSON

NVD Updated: Oct 26, 2026, 9:10 PM

Status: Deferred
Published: Apr 19, 2026, 1:16 PM
Modified: Oct 26, 2026, 9:10 PM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment Updated: Apr 20, 2026, 2:58 PM

Updated: Apr 20, 2026, 2:58 PM

JSON

Affected Products

Remediation

Tracking

Advisories

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

Sources

JSON object

JSON object

JSON object

JSON object

JSON object