Unauthenticated URL content retrieval via fileUrl
Published Apr 19, 2026 · Updated Apr 19, 2026
Improper authentication in KodCloud KodExplorer 4.0 through 4.52 allows remote attackers to retrieve URL content via a crafted fileUrl value. The share controller skips initShare and checkShare when fileUrl starts with http, then fileGet passes the value to file_get_contents after only a URL-safety check. No credentials or share identifier are required, so the server fetches attacker-selected URL content and returns it in the file-view response.
Summary
What happened
Improper authentication in KodCloud KodExplorer 4.0 through 4.52 allows remote attackers to retrieve URL content via a crafted fileUrl value. The share controller skips initShare and checkShare when fileUrl starts with http, then fileGet passes the value to file_get_contents after only a URL-safety check. No credentials or share identifier are required, so the server fetches attacker-selected URL content and returns it in the file-view response.
The record
- CVE
- CVE-2026-6569
- Published
- Apr 19, 2026
- Updated
- Apr 19, 2026
- Vendor
- kalcaddle
- Product
- KodExplorer
- Classifications
- CWE-287, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 19, 2026CVE publishedPublication date reported by the CVE source.
- Apr 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.0
- Affected versionversion=4.1
- Affected versionversion=4.10
- Affected versionversion=4.11
- Affected versionversion=4.12
- Affected versionversion=4.13
- Affected versionversion=4.14
- Affected versionversion=4.15
- Affected versionversion=4.16
- Affected versionversion=4.17
- Affected versionversion=4.18
- Affected versionversion=4.19
- Affected versionversion=4.2
- Affected versionversion=4.20
- Affected versionversion=4.21
- Affected versionversion=4.22
- Affected versionversion=4.23
- Affected versionversion=4.24
- Affected versionversion=4.25
- Affected versionversion=4.26
- Affected versionversion=4.27
- Affected versionversion=4.28
- Affected versionversion=4.29
- Affected versionversion=4.3
- Affected versionversion=4.30
- Affected versionversion=4.31
- Affected versionversion=4.32
- Affected versionversion=4.33
- Affected versionversion=4.34
- Affected versionversion=4.35
- Affected versionversion=4.36
- Affected versionversion=4.37
- Affected versionversion=4.38
- Affected versionversion=4.39
- Affected versionversion=4.4
- Affected versionversion=4.40
- Affected versionversion=4.41
- Affected versionversion=4.42
- Affected versionversion=4.43
- Affected versionversion=4.44
- Affected versionversion=4.45
- Affected versionversion=4.46
- Affected versionversion=4.47
- Affected versionversion=4.48
- Affected versionversion=4.49
- Affected versionversion=4.5
- Affected versionversion=4.50
- Affected versionversion=4.51
- Affected versionversion=4.52
- Affected versionversion=4.6
- Affected versionversion=4.7
- Affected versionversion=4.8
- Affected versionversion=4.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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