CVE-2026-59232

Stored Cross-site Scripting in Prospero Flow CRM lead name field

MEDIUM
5.3
CVSS Score
Published: July 31, 2026 at 04:00 PM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorProspero Flow CRM

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Cross-site Scripting in the lead index view in Roskus Prospero Flow CRM before 5.3.7 allows authenticated users holding the create or update lead permission to execute arbitrary JavaScript in the application origin via HTML markup stored in the lead name field, which the view renders through Blade's unescaped output directive and inside a JavaScript string literal in an onclick attribute.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 5.3.70
Affected range stops below 5.3.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Release Notes
Source: 4daa8cea-433a-44bd-9456-53b127fc289a
https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
Technical Description
Source: 4daa8cea-433a-44bd-9456-53b127fc289a
https://secur0.com/en/cna/cve-list/cve-2026-59232-stored-xss-in-prospero-flow-crm-lead-name-field

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMSecur0
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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