PT-2026-65087 · Roskus · Prospero Flow Crm

Gustavo Novaro + 2 · CVE-2026-59239 · Published 2026-07-27 · Updated 2026-07-27

NVD

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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

Stored Cross-site Scripting (CWE-79) in the email module in Roskus Prospero Flow CRM before 5.4.4 allows a remote, authenticated low-privileged user to execute arbitrary JavaScript in another user's browser, including administrators, leading to session compromise and account takeover, via a payload stored in an email body that is persisted without sanitization and rendered unescaped with {!! $email->body !!} when the recipient opens the message.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-59239

Affected Products

Prospero Flow Crm

References · 4

• https://github.com/Roskus/prospero-flow-crm/commit/32efcd5c395ee55119fb9aea502a9d06e4c5adb8 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-59239 · Security Note
• https://github.com/Roskus/prospero-flow-crm/releases · Note
• https://secur0.com/en/cna/cve-list/cve-2026-59239-stored-xss-in-prospero-flow-crm-email-body-allows-administrator-account-takeover · Note