Web security threats in 2026 are more sophisticated than ever — yet the most widespread vulnerabilities remain surprisingly similar to those from five years ago. OWASP released a new version of its renowned Top 10 list at the end of 2025, reflecting the current reality of web security. If your website or application hasn’t yet undergone a security audit against the OWASP 2025 framework, now is the time to fix that.
What Is the OWASP Top 10 and Why Does It Matter?
OWASP (Open Web Application Security Project) is a non-profit organization that has published its list of the most critical security risks for web applications since 2003. The Top 10 is a de facto industry standard: it serves as the basis for security audits, penetration testing, and as a reference framework for security requirements in procurement. The 2025 edition introduced several significant changes compared to 2021, reflecting the rise of AI, cloud-native architectures, and increasingly sophisticated supply chain attacks.
Key Changes in OWASP Top 10:2025
#1 – Broken Access Control (Still at the Top)
Broken Access Control remains at number one and now officially includes Server-Side Request Forgery (SSRF). This category affects 3.73% of all tested applications — the highest rate of any category. In practice, this means a user can access data or functionality they’re not authorized for. Classic examples include URL manipulation (changing /user/123 to /user/124) or direct API endpoint access without role verification.
#2 – Security Misconfiguration (Biggest Mover)
Security Misconfiguration jumped from #5 (2021) to #2 (2025) — the biggest position change in the list’s history. It covers inappropriate default settings, exposed cloud storage, missing HTTP security headers (CSP, HSTS, X-Frame-Options), and unprotected admin interfaces. For WordPress sites, this category is especially relevant: WordPress’s default settings don’t meet security standards and require active hardening.
#3 – Injection (SQL, NoSQL, OS, and Now Prompt Injection)
Injection attacks remain the third-largest risk. SQL injection is receding thanks to the spread of ORM frameworks, but it’s being replaced by NoSQL injection, OS command injection, and — new to the Top 10 — prompt injection in AI applications. Every piece of user input must be validated and sanitized; never construct SQL queries or commands as direct strings from user input.
#4 – Insecure Design (New Category)
Insecure Design is a new category appearing in the OWASP Top 10 for the first time. It reflects a shift in how security is perceived — from fixing bugs in existing code to building secure by design from the ground up. Typical problems: insufficient input validation at the architecture level, missing rate limiting on login forms, or absent threat modeling when developing new features.
#5 – Software and Data Integrity Failures (Expanded Supply Chain Category)
This category was expanded in 2025 to cover the entire supply chain — not just outdated components, but also compromised npm packages, malicious updates, and weaknesses in build and distribution pipelines. Incidents like SolarWinds and the xz utils compromise showed how devastating supply chain attacks can be. Regular dependency updates and monitoring (Dependabot, Snyk) are now mandatory practice.
#6 – #10: Other Critical Risks
The rest of the Top 10 includes: Security Logging and Monitoring Failures (without logs you won’t detect an attack), Cryptographic Failures (weak or missing encryption), SSRF now as a standalone category, Identification and Authentication Failures (weak passwords, missing MFA), and Insecure Deserialization. Each of these categories has clear, practically implementable countermeasures available even to small teams.
OWASP 2025 and WordPress: What to Do Right Now
For WordPress website operators, the most relevant steps are:
- Update WordPress, themes, and plugins — outdated software is the root cause of most breaches.
- Implement HTTP security headers — Content-Security-Policy, X-Frame-Options, HSTS.
- Limit login attempts — rate limiting on wp-login.php and XML-RPC.
- Enable two-factor authentication (2FA) for all administrator accounts.
- Audit user permissions — apply the principle of Least Privilege.
- Monitor logs — without visibility into site behavior, you won’t detect a compromise.
Conclusion
OWASP Top 10:2025 makes it clear that web application security is not a one-time project but a continuous process. Threats evolve — AI-specific vulnerabilities and supply chain attacks are on the rise — but the core principles remain the same: validate inputs, configure permissions correctly, keep components updated, and monitor for anomalies. Want a security audit of your website against the OWASP 2025 framework? Contact us — we offer professional penetration testing and security assessments.
