EUVD-2026-17851
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3Description
A vulnerability was detected in Harvard University IQSS Dataverse up to 6.8. This affects an unknown function of the file /ThemeAndWidgets.xhtml of the component Theme Customization. Performing a manipulation of the argument uploadLogo results in unrestricted upload. Remote exploitation of the attack is possible. The exploit is now public and may be used. Upgrading to version 6.10 mitigates this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Analysis
Unrestricted file upload in Harvard IQSS Dataverse versions up to 6.8 allows authenticated users to bypass theme customization controls via manipulation of the uploadLogo parameter in /ThemeAndWidgets.xhtml, enabling arbitrary file upload with low confidentiality, integrity, and availability impact. The vulnerability is publicly exploitable with proof-of-concept code available; CVSS 5.3 reflects the authenticated attack vector and limited scope, though the ease of exploitation (Attack Complexity Low, Exploitation proven) combined with public POC increases practical risk. …
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