What’s Vulnerable › Vulnerabilities

CVE-2026-59232: Stored Cross-site Scripting in Prospero Flow CRM lead name field

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-31 · updated 2026-10-23
• Weakness: CWE-79

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 products

• Roskus Prospero Flow CRM: before 5.3.7 — fixed in 5.3.7

How to fix

Upgrade to a fixed version: Roskus Prospero Flow CRM 5.3.7. Check the vendor advisory for mitigations.

References

• https://github.com/Roskus/prospero-flow-crm/commit/8b2633ddb2178c2f79718efdfb906e051ba2f03c
• https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
• https://secur0.com/en/cna/cve-list/cve-2026-59232-stored-xss-in-prospero-flow-crm-lead-name-field

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