CVE-2026-66771CWE-79cross-site-scripting

CVE-2026-66771

Medium · published August 11, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
31.0
In the wild
Unconfirmed
What it is

SAPUI5 allows a key user with content adaptation privileges to inject malicious script content into persisted application changes. When another user subsequently opens the adapted application, the injected script executes in the victim's browser session. Successful exploitation could allow the attacker to access sensitive session data and perform unauthorized actions on behalf of the victim, resulting in a high impact on confidentiality and integrity. There is no impact on availability.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00382 · 31.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-11T05:17Z
References (2)
EPSS history
Timeline
  • 11 AUG 00:18Z
    Cross Site Scripting (XSS) vulnerability in SAPUI5
    cvelistv5