v0
Lovable

v0.dev vs Lovable Security

v0.dev and Lovable both use AI to generate code, but with different scopes. v0 generates UI components while Lovable generates full-stack applications.

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Security Comparison

Category
v0
Lovable
Scope
UI components only
Full-stack applications
Database Security
N/A (no database)
Supabase RLS needed
API Key Risk
Low (frontend only)
High (may expose keys)
Attack Surface
Limited to UI
Full application stack
XSS Risk
Possible in generated code
Possible in generated code
Security Headers
Not generated
May not configure

The Verdict

v0's limited scope means fewer security concerns but less functionality. Lovable builds complete apps but requires comprehensive security review.

v0 components need security review when integrated. Lovable apps need full security scanning including database, auth, and secrets.

Industry Security Context

When comparing v0.dev vs Lovable, consider these broader security trends.

10.3%

of Lovable applications (170 out of 1,645) had exposed user data in the CVE-2025-48757 incident

Source: CVE-2025-48757 security advisory

91%

of data breaches involve databases with misconfigured access controls

Source: Verizon Data Breach Investigations Report

4.45 million USD

average cost of a data breach in 2023

Source: IBM Cost of a Data Breach Report 2023

Vibe coding your way to a production codebase is clearly risky. Most of the work we do as software engineers involves evolving existing systems, where the quality and understandability of the underlying code is crucial.

Simon WillisonSecurity Researcher, Django Co-creator

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