WordPress website vulnerabilities are security flaws in the WordPress core, plugins, themes, or hosting setup that attackers exploit to deface pages, steal data, or hijack a site. Most break-ins trace back to outdated software rather than WordPress itself. Plugins alone account for 96% of reported flaws, so the real fix is faster patching.
WordPress powers more than 40% of all websites, according to W3Techs, and that reach is exactly why it stays a target. The reassuring part is that the things that make a site vulnerable are almost all things you can control. Strong cybersecurity starts with closing the gaps attackers count on.
TL;DR. Most WordPress sites get hacked because something was left out of date, not because WordPress is unsafe. Keep core, plugins, and themes patched, remove what you do not use, enforce strong logins, and run a firewall. If tracking every update is too much, a managed provider can handle patching, monitoring, and backups so a known flaw never becomes your outage.
What makes WordPress sites vulnerable
A WordPress vulnerability is any weakness in your site’s software or configuration that gives an attacker a way in. Most are not exotic. They come from code that was never updated, settings left at their defaults, or add-ons that should have been removed long ago.
In 2024, researchers logged 7,966 new vulnerabilities across the WordPress ecosystem, a 34% jump over the year before, and 96% of them lived in plugins (Patchstack State of WordPress Security 2025). The pattern almost never changes. Here is where the risk actually comes from.
| Source | Why it is risky | How to reduce it |
|---|---|---|
| Outdated plugins and themes | Known holes stay open after a fix exists | Patch promptly on a managed schedule |
| Skipped core updates | Sites stay exposed long after a security release | Apply security releases the day they ship |
| Weak or reused passwords | Brute-force bots crack them in seconds | Strong unique logins plus two-factor authentication |
| Nulled or low-quality plugins | Can ship with backdoors already inside | Install only from trusted sources |
| Unmanaged hosting | One hacked site can spread to others | Use isolated hosting with web filtering |
A cautionary example from 2017
One of the clearest lessons came in early 2017. A flaw in the WordPress REST API let attackers rewrite content on unpatched sites without logging in. Sucuri researchers spotted it, and WordPress quietly shipped the 4.7.2 security release to close it.
Then the patch went public, and the attacks exploded. Defacements started at 67,000 pages, climbed past 100,000 the next day, and skyrocketed to more than 1.5 million pages across 39,000 domains as 20 separate hacking groups piled in (BleepingComputer). The sites that updated on time were fine. The sites that waited became the headline. That gap between “a fix exists” and “the fix is installed” is exactly where attackers live.
Why patching is your strongest defense
Attackers do not wait politely while developers harden their code. New exploits launch alongside every patch cycle, often aimed at the same flaw the patch just disclosed. Unpatched systems are the easiest targets because the vulnerability is already public knowledge and the scanning is automated.
If keeping every plugin, theme, and core file current feels impossible, that is a sign you need patch management rather than more willpower. Automated patch management software, or a managed provider that handles it for you, closes the window attackers depend on before they can climb through it.
How to protect your WordPress site
- Apply core, plugin, and theme updates promptly, ideally on a managed schedule.
- Remove plugins and themes you no longer use instead of leaving them inactive.
- Enforce strong, unique passwords and two-factor authentication for every admin account.
- Run a web application firewall to filter malicious traffic before it reaches your site.
- Keep tested, offsite backups so you can restore quickly after an incident.
- Monitor for unauthorized changes so a defacement does not sit live for days.
For a broader playbook beyond WordPress, read our guide on how to protect your SMB from cyberthreats, and see how layered cybersecurity services protect every system you run, not just your website.
Common questions about WordPress security
Is WordPress safe to use for a business website?
Yes. WordPress is secure when it is kept current. The platform itself is well maintained, and the vast majority of breaches come from outdated plugins, weak passwords, or skipped updates rather than flaws in core WordPress.
What is the most common cause of a hacked WordPress site?
Outdated plugins and themes. They are the leading entry point because their vulnerabilities become public the moment a patch is released, and any site that has not updated is an open door.
How often should I update WordPress?
Install security releases as soon as they ship, not on a monthly cycle. Routine feature updates can follow a tested schedule, but security patches close holes attackers are already scanning for, so speed matters more than convenience.
Do I still need a firewall if WordPress is updated?
Yes. Updates close known holes, but a web application firewall blocks brute-force attempts, bad bots, and zero-day exploits that no patch exists for yet. They work together rather than replacing each other.
Should a small business manage WordPress security itself?
It depends on your capacity. Many small teams lack the time to track every patch across plugins, themes, and core. A managed IT provider handles updates, monitoring, and backups so security does not depend on someone remembering to log in.
WordPress is not going anywhere, and neither are the people trying to break into it. If your site runs on WordPress and you want it watched, patched, and backed up without lifting a finger, talk to an Uprite IT expert or call us at (866) 570-3065.
