CVE-2026-42538: CWE-434: Unrestricted Upload of File with Dangerous Type in dfir-iris iris-web
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 do not properly validate uploaded files. The application can therefore be misused to host phishing pages, amongst other things. This also creates another instance of a Cross-Site Scripting (XSS) vulnerability. Version 2.4.28 contains a patch.
AI Analysis
Technical Summary
The dfir-iris iris-web platform before version 2.4.28 suffers from CWE-434: Unrestricted Upload of File with Dangerous Type. Improper validation of uploaded files allows malicious actors to upload harmful content such as phishing pages, which can also trigger a Cross-Site Scripting (XSS) vulnerability. This can lead to partial confidentiality impact and limited integrity impact, with no availability impact. The vulnerability is fixed in version 2.4.28.
Potential Impact
Successful exploitation could allow an attacker with limited privileges and user interaction to upload malicious files that may host phishing content and execute XSS attacks. This impacts confidentiality by potentially exposing sensitive information and integrity by allowing injection of malicious scripts. There is no known impact on availability. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade dfir-iris iris-web to version 2.4.28 or later, which contains the patch addressing this vulnerability. Since the vendor has released a fixed version, applying this official update is the recommended remediation. Patch status is confirmed by the vendor advisory indicating the fix is in version 2.4.28.
CVE-2026-42538: CWE-434: Unrestricted Upload of File with Dangerous Type in dfir-iris iris-web
Description
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 do not properly validate uploaded files. The application can therefore be misused to host phishing pages, amongst other things. This also creates another instance of a Cross-Site Scripting (XSS) vulnerability. Version 2.4.28 contains a patch.
CVSS v3.1
Score 6.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The dfir-iris iris-web platform before version 2.4.28 suffers from CWE-434: Unrestricted Upload of File with Dangerous Type. Improper validation of uploaded files allows malicious actors to upload harmful content such as phishing pages, which can also trigger a Cross-Site Scripting (XSS) vulnerability. This can lead to partial confidentiality impact and limited integrity impact, with no availability impact. The vulnerability is fixed in version 2.4.28.
Potential Impact
Successful exploitation could allow an attacker with limited privileges and user interaction to upload malicious files that may host phishing content and execute XSS attacks. This impacts confidentiality by potentially exposing sensitive information and integrity by allowing injection of malicious scripts. There is no known impact on availability. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade dfir-iris iris-web to version 2.4.28 or later, which contains the patch addressing this vulnerability. Since the vendor has released a fixed version, applying this official update is the recommended remediation. Patch status is confirmed by the vendor advisory indicating the fix is in version 2.4.28.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-28T16:56:50.190Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a21e829e29bf47b50d078e5
Added to database: 6/4/2026, 9:03:37 PM
Last enriched: 6/4/2026, 9:19:39 PM
Last updated: 6/4/2026, 10:05:20 PM
Views: 5
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