CVE-2026-78337

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

4.8 Medium

Unrestricted 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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Active

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.40%Up 0.1 points since Aug 25, 2026

What each source reports

CVE List Score used 4.8

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

Record: CVE-2026-78337
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2026-64825 4.8

Record: EUVD-2026-64825
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-rfhp-pmfg-hj92 4.8

Unrestricted Upload of File with Dangerous Type in the company logo upload in Roskus Prospero...

Record: GHSA-rfhp-pmfg-hj92
CVSS 4.0: 4.8 MediumCVSS: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
Weakness: CWE-434
Updated: 2026-11-02

NVD 4.8

Record: CVE-2026-78337
CVSS 4.0: 4.8 MediumCVSS: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
Weakness: CWE-434
Updated: 2026-11-02

OSV 4.8

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

Record: CVE-2026-78337
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Weakness: CWE-434
Updated: 2026-11-02

Affected products

roskus prospero flow crm

History

History
Recorded	Changed	Sources
Nov 2, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-78337 is a medium vulnerability (CVSS 4.8) in Roskus Prospero Flow Crm, published August 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.