VDB-354616 · CVE-2026-1879 · EUVD-2026-17851

Harvard University IQSS Dataverse up to 6.8 Theme Customization /ThemeAndWidgets.xhtml uploadLogo unrestricted upload

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.52

Summaryinfo

A vulnerability labeled as critical has been found in Harvard University IQSS Dataverse up to 6.8. This impacts an unknown function of the file /ThemeAndWidgets.xhtml of the component Theme Customization. Executing a manipulation of the argument uploadLogo can lead to unrestricted upload. This vulnerability is handled as CVE-2026-1879. The attack can be executed remotely. Additionally, an exploit exists. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Detailsinfo

A vulnerability was found in Harvard University IQSS Dataverse up to 6.8. It has been declared as critical. This vulnerability affects an unknown part of the file /ThemeAndWidgets.xhtml of the component Theme Customization. The manipulation of the argument uploadLogo with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at gist.github.com. This vulnerability was named CVE-2026-1879. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1608.002.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Upgrading to version 6.10 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17851). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Harvard University

Name

IQSS Dataverse

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: IQSS Dataverse 6.10

Timelineinfo

04/01/2026 Advisory disclosed
04/01/2026 +0 days VulDB entry created
04/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Confirmed

CVE: CVE-2026-1879 (🔒)
GCVE (CVE): GCVE-0-2026-1879
GCVE (VulDB): GCVE-100-354616
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/01/2026 11:22
Updated: 04/01/2026 15:46
Changes: 04/01/2026 11:22 (60), 04/01/2026 15:46 (1)
Complete: 🔍
Submitter: JustF0rFun
Cache ID: 216:620:103

Submitinfo

Accepted

Submit #749003: Harvard University Dataverse Project 6.8 build 1994-92d1ec8 Unrestricted Upload (by JustF0rFun)

VulDB is the best source for vulnerability data and more expert information about this specific topic.