CVE-2026-78337 Unrestricted upload of file with dangerous type in Prospero Flow CRM allows stored cross-site scripting via SVG
Authenticated users can upload malicious SVG files to execute arbitrary JavaScript in the CRM application via stored XSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-78337?
CVE-2026-78337 is a medium-severity vulnerability in Roskus Prospero Flow CRM, published on 24 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2026-78337?
How do I fix CVE-2026-78337?
No fix has been published for CVE-2026-78337 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-78337 being exploited?
There is no known exploitation of CVE-2026-78337 in the wild and no public exploit code.
Sources
Also known as GHSA-rfhp-pmfg-hj92.