CVE-2026-15371: CWE-177 Improper handling of URL encoding (hex encoding) in Rapid7 Velociraptor
CVE-2026-15371 is a high-severity vulnerability in Rapid7 Velociraptor versions from 0 up to but not including 0.77.2. The web GUI allows users to specify a custom column type as a URL, but it does not restrict URL schemes. This flaw permits an attacker to use a JavaScript scheme, leading to a cross-site scripting (XSS) risk when users click the crafted URL in the GUI.
AI Analysis
Technical Summary
Rapid7 Velociraptor's web GUI feature for custom column types includes a URL type that forms clickable links from cell values. The vulnerability arises because the code does not restrict allowed URL schemes, enabling an attacker to specify a JavaScript scheme. This improper handling of URL encoding (CWE-177) can lead to XSS attacks within the GUI environment. The affected versions are all releases from 0 up to but excluding 0.77.2. The CVSS v3.1 score is 8.1, indicating high severity with network attack vector, low attack complexity, required privileges, user interaction, and impact on confidentiality and integrity but no impact on availability.
Potential Impact
An attacker with privileges to specify custom column types can craft URLs using the JavaScript scheme, causing arbitrary script execution in the context of the Velociraptor web GUI user. This can lead to compromise of user session data or other sensitive information accessible via the GUI. The vulnerability affects confidentiality and integrity but does not impact availability.
Mitigation Recommendations
A fix is available in Velociraptor version 0.77.2 and later. Users should upgrade to version 0.77.2 or newer to remediate this vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary fixes.
CVE-2026-15371: CWE-177 Improper handling of URL encoding (hex encoding) in Rapid7 Velociraptor
Description
CVE-2026-15371 is a high-severity vulnerability in Rapid7 Velociraptor versions from 0 up to but not including 0.77.2. The web GUI allows users to specify a custom column type as a URL, but it does not restrict URL schemes. This flaw permits an attacker to use a JavaScript scheme, leading to a cross-site scripting (XSS) risk when users click the crafted URL in the GUI.
CVSS v3.1
Score 8.1high
Affected software
Rapid7
Velociraptor
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Rapid7 Velociraptor's web GUI feature for custom column types includes a URL type that forms clickable links from cell values. The vulnerability arises because the code does not restrict allowed URL schemes, enabling an attacker to specify a JavaScript scheme. This improper handling of URL encoding (CWE-177) can lead to XSS attacks within the GUI environment. The affected versions are all releases from 0 up to but excluding 0.77.2. The CVSS v3.1 score is 8.1, indicating high severity with network attack vector, low attack complexity, required privileges, user interaction, and impact on confidentiality and integrity but no impact on availability.
Potential Impact
An attacker with privileges to specify custom column types can craft URLs using the JavaScript scheme, causing arbitrary script execution in the context of the Velociraptor web GUI user. This can lead to compromise of user session data or other sensitive information accessible via the GUI. The vulnerability affects confidentiality and integrity but does not impact availability.
Mitigation Recommendations
A fix is available in Velociraptor version 0.77.2 and later. Users should upgrade to version 0.77.2 or newer to remediate this vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- rapid7
- Date Reserved
- 2026-07-10T08:15:06.308Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8442fac6e8be033220da53
Added to database: 08/18/2026, 11:33:14 UTC
Last enriched: 09/11/2026, 23:19:09 UTC
Last updated: 10/02/2026, 14:46:05 UTC
Views: 67
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