Advisories

Thelia before 3.1.1 Stored XSS via SVG Store Logo and Banner Uploads

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Severity
medium
Date
Affecting
  • Thelia >= 0, < 3.1.1

  • Thelia Core >= 0, < 3.1.1

  • Thelia Back-office Default Twig Template >= 0, < 1.1.1

CWE
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
4.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Credit
pnn219
Description
Thelia before 3.1.1 contains a stored cross-site scripting vulnerability that allows authenticated back-office administrators with store update permission to inject scripts by uploading unsanitized SVG logo_file or banner_file images. Attackers can upload an SVG with an onload payload served from /admin/store-media/logo or the public cache/images/store/ directory to execute scripts against visitors and higher-privileged administrators.

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