Audit WordPress Plugins
Find plugins slowing you down or creating risk.
What this covers: A systematic plugin audit process: listing all installed plugins, categorizing by risk level, deciding what to update, replace, or delete, plus security scanning tools and ongoing hygiene practices.
Who it’s for: WordPress site owners with a growing list of plugins who need to identify security risks, remove bloat, and establish a maintenance routine.
Key outcome: You’ll have audited every plugin on your site, removed unnecessary ones, updated the rest, and set up auto-updates and a quarterly review schedule.
Time to read: 5 minutes
Part of: Website Management series
You checked your WordPress plugins and found 47 installed, with 12 that haven’t been updated in over a year. Should you be worried? Yes, but not about all of them equally. Here’s how to audit your plugins and reduce risk.
Outdated plugins are the #1 way WordPress sites get hacked. That plugin you installed 3 years ago and forgot about? It is a security hole. 12 outdated plugins means 12 potential entry points for attackers. And every unnecessary plugin slows your site down.
Why Outdated Plugins Are Dangerous
Plugins are the #1 attack vector for WordPress sites. When a vulnerability is discovered in a plugin:
- The developer releases a fix
- Hackers reverse-engineer the fix to find the vulnerability
- They scan the internet for sites running the old version
- Your site gets hacked
Outdated = vulnerable. It’s that simple.
The Audit Process
Step 1: List Everything
Go to Plugins > Installed Plugins. For each plugin, note:
- Name
- Active or inactive?
- Last updated (check plugin page on wordpress.org)
- What does it do?
- Is it still needed?
Step 2: Categorize by Risk
High risk – act immediately:
- Plugin hasn’t been updated in 2+ years
- Plugin has known vulnerabilities (check WPScan Vulnerability Database)
- Plugin is installed but inactive (attack surface for no benefit)
Medium risk – address soon:
- Plugin hasn’t been updated in 1-2 years
- Plugin is from an unknown developer
- Plugin does something another plugin already does
Lower risk – monitor:
- Plugin is actively maintained but you’re a few versions behind
- Plugin is from a reputable developer (Yoast, Automattic, etc.)
Step 3: Take Action
For each plugin, decide:
- Update: If it’s maintained and you need it
- Replace: If it’s abandoned but you need the functionality
- Delete: If you don’t need it (not just deactivate – delete)
The “Do I Need This Plugin?” Test
For each plugin, ask:
- What does it do?
- What breaks if I deactivate it?
- Is there a simpler way to do this?
If you don’t know what a plugin does, deactivate it on staging first and test. Many sites have plugins installed for a one-time task years ago that are no longer needed.
Common Plugins to Scrutinize
- Page builders you’re not using: Elementor, Beaver Builder, Divi – if you’re not using them, remove them
- Old backup plugins: If you switched backup methods, remove the old plugin
- Social sharing plugins: Often outdated, often unnecessary
- Slider plugins: Performance hogs, often not needed
- Contact form plugins: Do you have two? Pick one.
Security Scanning Tools
Pick the tool that fits your workflow and budget.
- Wordfence – Security plugin with vulnerability scanning
- WPScan – Online vulnerability scanner
- Plugin Security Scanner – Checks plugins against known vulnerabilities
Going Forward: Plugin Hygiene
- Auto-updates: Enable for trusted plugins (Plugins > Installed > Enable auto-updates)
- Monthly check: Review plugin update notifications
- Before installing: Check last updated date, reviews, active installations
- Principle: Fewer plugins = smaller attack surface = less risk
The Post-Audit Plugin Checklist
- Every active plugin has a clear purpose you can articulate
- Unused plugins are deactivated AND deleted
- All plugins are updated to latest versions
- No plugins have been abandoned (check last update date)
- You’ve tested the site after cleanup to confirm nothing broke
Schedule: Run a plugin audit quarterly. Plugins accumulate like clutter—regular cleanup keeps the site fast and secure.
Sources
Plugin Audit Questions Answered
How many WordPress plugins is too many?
There’s no magic number—quality matters more than quantity. A site with 30 well-maintained plugins can outperform one with 10 poorly coded plugins. That said, most sites can achieve their goals with 10-20 plugins. If you have 30+, you almost certainly have redundancy or plugins you’ve forgotten about.
How do I know if a plugin is a security risk?
Check five things: last updated date (over 12 months is a red flag), active installations (under 1,000 with no updates is concerning), known vulnerabilities at wpscan.com/plugins, whether it’s still listed in the WordPress.org repository (removed plugins had serious issues), and PHP error logs after activation.
Should I delete deactivated plugins?
Yes, always. Deactivated plugins can still be exploited if they contain vulnerabilities—the code files are still on your server and accessible. Deactivate, verify nothing breaks for 48 hours, then delete. Keep a list of what you removed and why in case you need to revisit the decision.
How often should I audit my WordPress plugins?
Full audit quarterly. Quick security check (updates available, any removed from repository) monthly. After any site incident (hack, outage, performance drop), audit immediately. Set a recurring calendar reminder—plugin audits are the single most impactful WordPress maintenance task.
✓ Your Plugin Audit Is Complete When
- Every installed plugin has been reviewed and categorized as essential, replaceable, or removable
- Inactive plugins have been deleted (not just deactivated)
- All remaining plugins have been updated within the last 6 months by their developers
- No two plugins duplicate the same functionality
- A recurring calendar reminder is set for your next quarterly plugin audit
Test it: Check your plugin list count before and after the audit—you should have fewer plugins, and every remaining one should have a clear, documented reason for being installed.