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CVE-2026-78337

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

Medium4.8EPSS 0.40%
Published
Updated
Reserved
Assigned by
Secur0

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.

Scores

CVSS scores of CVE-2026-78337, by who scored it
Scored byCVSSScoreVector
Secur0CNA (assigner)4.0Medium4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
NVDNVD · Deferred4.0Medium4.8CVSS: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
EPSS (exploitation in 30 days)
0.40% · top 66% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.

Weakness

Affected products

What to do

Solution: 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/

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-78337 badge
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Record last updated .