Vulnerability · Published Jan 22, 2026 · Assigned by Altium
CVE-2025-27380HTML Injection Leading to Script Execution in Altium Enterprise Server
High 7.6
In plain English
A high-severity cross-site scripting in AES from Altium. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)7.6High
Exploit odds (30 days)0.3%top 80.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HTML injection in Project Release in Altium Enterprise Server (AES) 7.0.3 on all platforms allows an authenticated attacker to execute arbitrary JavaScript in the victim’s browser via crafted HTML content.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N