CVE-2025-8386

MEDIUM

AVEVA Application Server - Authenticated XSS via App Objects Help Files

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 6.9
EPSS 0.0001
EPSS Percentile 3.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-80
Status published
Products (1)
AVEVA/Application Server < Versions 2023 R2 SP1 P02
Published Nov 15, 2025
Tracked Since Feb 18, 2026