Reflected Cross-Site Scripting (XSS) vulnerability in saTECH BCU

published 2025-03-28 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-15093

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

SaTECH BCU, in its firmware version 2.1.3, could allow XSS attacks and other malicious resources to be stored on the web server. An attacker with some knowledge of the web application could send a malicious request to the victim users. Through this request, the victims would interpret the code (resources) stored on another malicious website owned by the attacker.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-28)

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	2.4	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CNA	4.0	2.4	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Arteche saTECH BCU

Classification

Weakness

CWE-942 Permissive Cross-domain Security Policy with Untrusted Domains
CWE-79 Improper Neutralization of Input During Web Page Generation

References

incibe.es /en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-arteches-satech-bcu
third-party-advisory

Sources

CVE List CVE-2025-2865
NVD CVE-2025-2865

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary