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Cross-site Scripting (XSS)Weakness · CWE-79

CVE-2026-59232

MEDIUM · 5.3 CVSS v4.0 Published 2026-07-31
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable No privileges Patch available 3 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
Authentication
X
User interaction
P
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

Version 5.3.7 or later of Roskus Prospero Flow CRM

  1. 1. Verify current Roskus Prospero Flow CRM version by checking the application footer or admin panel
  2. 2. Backup the database and application files before upgrading
  3. 3. If current version is below 5.3.7, obtain version 5.3.7 or later from the official Roskus repository or release channel
  4. 4. Follow the standard upgrade procedure documented in the project's upgrade guide (typically: composer update, php artisan migrate, clear caches)
  5. 5. Verify the fix by creating a test lead with HTML/JavaScript in the name field (e.g., <script>alert(1)</script>) and confirming it is properly escaped when rendered in the lead index view
  6. 6. Confirm the fix resolves both the Blade unescaped output issue and the onclick attribute vulnerability

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-59232 in production — separate from our analysis above.

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