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CVE-2026-35169LORIS has potential cross-site scripting in help_editor module

Description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From to before 27.0.3 and 28.0.1, the help_editor module of LORIS did not properly sanitize some user supplied variables which could result in a reflected cross-site scripting attack if a user is tricked into following an invalid link. The same input vector could also allow an attacker to download arbitrary markdown files on an unpatched server. This vulnerability is fixed in 27.0.3 and 28.0.1.

Timeline

  1. ID reserved

    By GitHub_M

  2. · 7 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-35169, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1High8.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
NVDNVD · Analyzed3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.16% · top 95% of all CVEs (13 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.

Affected products

  • aces · Loris

    • affected >= , < 27.0.3
    • affected >= 28.0.0, < 28.0.1

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .