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Description

Stored Cross-Site Scripting (XSS) vulnerability in Sesame web application, due to the fact that uploaded SVG images are not properly sanitized. This allows attackers to embed malicious scripts in SVG files by sending a POST request using the 'logo' parameter in '/api/v3/companies/<ID>/logo', which are then stored on the server and executed in the context of any user who accesses the compromised resource.

PUBLISHED Reserved 2025-04-16 | Published 2026-01-20 | Updated 2026-01-29 | Assigner INCIBE




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status
unaffected

all versions
affected

Credits

Miguel Jiménez Cámara finder

References

www.incibe.es/...s-site-scripting-xss-sesame-web-application

cve.org (CVE-2025-41084)

nvd.nist.gov (CVE-2025-41084)

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