CVE-2025-40633: Stored Cross-Site Scripting (XSS) in Koibox

5.1 CVSS

Description

A Stored Cross-Site Scripting (XSS) vulnerability has been found in
Koibox for versions prior to e8cbce2. This vulnerability allows an
authenticated attacker to upload an image containing malicious
JavaScript code as profile picture in the
'/es/dashboard/clientes/ficha/' endpoint

Classification

CVE ID: CVE-2025-40633

CVSS Base Severity: MEDIUM

CVSS Base Score: 5.1

CVSS Vector: CVSS: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')

Affected Products

Vendor: Koibox

Product: Koibox

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 16.26% (scored less or equal to compared to others)

EPSS Date: 2025-05-31 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-40633
https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-koibox

Timeline