Vulnerability · Published Nov 14, 2025 · Assigned by icscert
CVE-2025-8386AVEVA Application Server IDE Basic Cross-site Scripting
Medium 6.9
In plain English
A medium-severity security flaw in Application Server from AVEVA. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Official description
The vulnerability, if exploited, could allow an authenticated miscreant (with privilege of "aaConfigTools") to tamper with App Objects' help files and persist a cross-site scripting (XSS) injection that when executed by a victim user, can result in horizontal or vertical escalation of privileges. The vulnerability can only be exploited during config-time operations within the IDE component of Application Server. Run-time components and operations are not affected.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AVEVA | Application Server | 0 – through Versions 2023 R2 SP1 P02 |
Weakness: CWE-80 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L