CVE-2026-35403

MEDIUM

LORIS has potential cross-site scripting in survey_accounts module

Title source: cna
STIX 2.1

Description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 15.10 to before 27.0.3 and 28.0.1, there is a potential for a cross-site scripting attack in the survey_accounts module if a user provides an invalid visit label. While the data is properly JSON encoded, the Content-Type header is not set causing the web browser to interpret the payload as HTML, opening the possibility of a cross-site scripting if a user is tricked into following an invalid link. This vulnerability is fixed in 27.0.3 and 28.0.1.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0017
EPSS Percentile 6.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (4)
aces/Loris >= 15.10, < 27.0.3
aces/Loris >= 28.0.0, < 28.0.1
mcgill/loris 28.0.0
mcgill/loris 15.10 - 27.0.2
Published Apr 08, 2026
Tracked Since Apr 09, 2026