
Security Update: April 2025 – Major PHP Supply Chain Attack
A popular PHP package was compromised in April 2025, resulting in malicious code being distributed to thousands of web applications.
Real-World PHP Supply Chain Attack Case Study (April 2025)
In 2019, the PEAR PHP repository was compromised, leading to the distribution of malicious packages. Read more: PEAR repository hack analysis.
What Happened in the April 2025 PHP Supply Chain Attack?
- Attackers injected a backdoor into a widely used PHP library.
- The malicious update was downloaded over 50,000 times before being discovered.
How to Protect Your UK Web Applications from PHP Supply Chain Attacks (April 2025)
- Audit your PHP dependencies for suspicious updates.
- Use tools like Composer's audit feature.
- Roll back to safe versions if you detect the compromised package.
- Monitor for unusual outbound connections from your servers.
- Enable MFA (multi-factor authentication) for repository accounts.
- Subscribe to security advisories for your dependencies.
PHP Security Resources for UK Web Applications (April 2025)
Frequently Asked PHP Security Questions for UK Web Applications (April 2025)
Q: How do I know if my PHP app is affected by a supply chain attack?
A: Audit dependencies, monitor for suspicious updates, and use security tools to scan for vulnerabilities.
Q: What is the best way to secure PHP packages?
A: Use Composer’s audit feature, enable MFA (multi-factor authentication), and subscribe to security advisories.
Q: Can open source PHP packages be trusted?
A: Most are safe, but always review maintainers, audit code, and stay updated on security advisories.
Stay vigilant and keep your dependencies up to date.

