EUVD-2026-60159
GHSA-wpg4-f3mj-hxh3
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-delivered DOM XSS with low-privilege requirement and mandatory victim interaction; scope changes to victim's browser session, yielding limited confidentiality and integrity impact.
Primary rating from Vendor (cert).
CVSS VectorVendor: cert
Lifecycle Timeline
2DescriptionCVE.org
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
AnalysisAI
DOM-based Cross-Site Scripting in OutSystems Service Center (all versions before 11.41.2) allows a low-privileged authenticated user to inject malicious JavaScript by uploading a file with a crafted filename, which executes in the browser context of other users - typically higher-privileged administrators - who subsequently view the rendered filename. The flaw affects every file attachment location within Service Center. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a valid low-privileged account in the OutSystems Service Center environment - unauthenticated exploitation is not possible per the CVSS 4.0 PR:L metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 4.8 (Medium) accurately reflects the constrained exploitation profile: the attacker must hold valid low-privileged credentials, and a higher-privileged victim must actively interact with the malicious filename in their browser session (UI:A), which materially reduces the likelihood of opportunistic mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade OutSystems Service Center to version 11.41.2 or later, which contains the vendor-confirmed fix for this vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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