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SAPCVE-2026-66771

SAPUI5: cross-site scripting

Medium6.1CVE-2026-66771 · Published Aug 11, 2026 · updated Aug 26, 2026

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.

SAP advisory

Affected versions

PackageAffectedFixed in
SAPUI5
Product
<= SAP_UI 750No fix yet
<= 754No fix yet
<= 755No fix yet
<= 756No fix yet
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-79

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