CVE-2026-35403CWE-79

LORIS has potential cross-site scripting in survey_accounts module

Medium · published April 8, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00221 · 12.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-08T18:27Z
EPSS history
Timeline
  • 08 APR 18:27Z
    LORIS has potential cross-site scripting in survey_accounts module
    cvelistv5