CVE-2026-40126

DOM-based Cross-Site Scripting in OutSystems Service Center

MEDIUM
4.8
CVSS Score
Published: August 17, 2026 at 12:03 PM UTC
Updated: August 28, 2026 at 03:42 PM UTC
1 product affected across 1 vendorService Center

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

OutSystems Service Center is vulnerable to a DOM-based Cross-Site Scripting (XSS) attack that can be exploited by a low-privileged attacker via the upload of a file with a malicious filename containing JavaScript code. The vulnerability exists in all locations where a file can be attached and prepared for upload to the server. This issue was fixed in OutSystems Service Center version 11.41.2

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 11.41.2
Affected range stops below 11.41.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.8MEDIUMCERT-PL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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