Unrestricted upload of file with dangerous type in Prospero Flow CRM allows stored cross-site scripting via SVG

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78337
StatePUBLISHED
AssignerSecur0
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-24 11:16:41 UTC
Updated2026-08-24 12:16:56 UTC
DescriptionUnrestricted Upload of File with Dangerous Type in the company logo upload in Roskus Prospero Flow CRM before 5.15.13 allows an authenticated user holding the create company and update company permissions to execute arbitrary JavaScript in the application origin via an SVG document containing an embedded script element.

Risk And Classification

Primary CVSS: v4.0 4.8 MEDIUM from 4daa8cea-433a-44bd-9456-53b127fc289a

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/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

Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted upload of file with dangerous type

VersionSourceTypeScoreSeverityVector
4.04daa8cea-433a-44bd-9456-53b127fc289aSecondary4.8MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/C...
4.0CNACVSS4.8MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Active
Confidentiality
None
Integrity
Low
Availability
None
Sub Conf.
None
Sub Integrity
Low
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Roskus Prospero Flow CRM affected 5.15.13 semver Not specified

References

ReferenceSourceLinkTags
github.com/Roskus/prospero-flow-crm/commit/aaa4fc76bf039d5011884b86b8f29... 4daa8cea-433a-44bd-9456-53b127fc289a github.com
secur0.com/en/cna/cve-list/cve-2026-78337-unrestricted-upload-company-lo... 4daa8cea-433a-44bd-9456-53b127fc289a secur0.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Adrián García López (en)

CNA: Darío Rivas Quero (en)

CNA: Xoán M. Otero Jorge (en)

CNA: Secur0 CNA (en)

CNA: Gustavo Novaro (en)

Additional Advisory Data

Solutions

CNA: Upgrade to 5.15.13 or later from the main branch; no tag carries the fix. Review and remove existing SVG files under storage/app/public/company/

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