SAP UI5 XSS: Insufficient Input Validation Allows Malformed Content
CVE-2026-89106 Published on October 13, 2026

Cross Site Scripting (XSS) vulnerability in SAPUI5
SAP UI5 does not perform sufficient input validation under certain configurations. An attacker with low privileges could submit specially crafted content that is later rendered in a victim's browser. This vulnerability has a low impact on confidentiality and integrity. There is no impact on availability.

NVD

Vulnerability Analysis

CVE-2026-89106 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

What is an Allowlist / Allow List Vulnerability?

The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are explicitly allowed by policy because the inputs are assumed to be safe, but the list is too permissive - that is, it allows an input that is unsafe, leading to resultant weaknesses.

CVE-2026-89106 has been classified to as an Allowlist / Allow List vulnerability or weakness.


Affected Versions

SAP_SE SAPUI5: