Title: Prevent XSS Vulnerability
Author: Sami Ahmed Siddiqui
Published: <strong>23. kolovoza 2017.</strong>
Last modified: 22. srpnja 2025.

---

Pretraga dodataka

![](https://ps.w.org/prevent-xss-vulnerability/assets/banner-772x250.png?rev=1795795)

Dodatak **nije testiran s zadnje 3 glavna izdanja WordPressa**. Možda ga se više
ne održava ili pruža podršku i možda ima probleme sa kompatibilnošću s novijim inačicama
WordPressa.

![](https://ps.w.org/prevent-xss-vulnerability/assets/icon.svg?rev=1785920)

# Prevent XSS Vulnerability

 Od [Sami Ahmed Siddiqui](https://profiles.wordpress.org/sasiddiqui/)

[Preuzmi](https://downloads.wordpress.org/plugin/prevent-xss-vulnerability.2.1.0.zip)

 * [Detalji](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/#description)
 * [Recenzije](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/#reviews)
 *  [Instalacija](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/#installation)
 * [Razvoj](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/#developers)

 [Podrška](https://wordpress.org/support/plugin/prevent-xss-vulnerability/)

## Opis

This plugin helps safeguard your website against two common types of Cross-Site 
Scripting (XSS) vulnerabilities:

 * **Reflected XSS:** This happens when harmful scripts are hidden in a website’s
   URL. If a user clicks a link with such a script, it can run in their browser,
   potentially stealing their data or taking control of their system.
 * **Self-XSS:** This occurs when a user’s own input on your website is displayed
   back to them in an unsafe way, allowing malicious scripts to run in their browser.

This plugin provides several layers of protection:

**Blocking:** When active, the plugin checks URLs for specific characters. If it
finds any of these characters in the URL, it redirects the user to prevent a potential
XSS attack. You can customize which characters to block or allow.

 * Opening Round Bracket `(`
 * Closing Round Bracket `)`
 * Less than Sign `<`
 * Greater than Sign `>`
 * Opening Square Bracket `[`
 * Closing Square Bracket `]`
 * Opening Curly Bracket `{`
 * Pipe or Vertical Bar `|`
 * Closing Curly Bracket `}`

**Encoding:** For an extra layer of security, the plugin encodes certain characters
found in URL parameters. This stops harmful code from running, even if it’s present
in the URL. You can also choose to exclude specific parameters from being encoded.

 * Exclamation Mark `!`
 * Double Quotation `"`
 * Single Quotation `'`
 * Opening Round Bracket `(`
 * Closing Round Bracket `)`
 * Asterisk Sign `*`
 * Less than Sign `<`
 * Greater than Sign `>`
 * Grave Accent “`
 * Cap Sign `^`
 * Opening Square Bracket `[`
 * Closing Square Bracket `]`
 * Opening Curly Bracket `{`
 * Pipe or Vertical Bar `|`
 * Closing Curly Bracket `}`

**Escaping HTML in `$_GET`:** This plugin automatically makes HTML characters safe
within the `$_GET` variable. This is vital if your website pulls data from URLs 
and displays it as part of your web page. It helps prevent malicious scripts from
being injected through user-provided input.

### Important Notes:

 * After activating the plugin, **thoroughly test your website forms**, especially
   if you use WooCommerce. Make sure the plugin doesn’t interfere with your shopping
   cart and checkout processes.
 * We welcome bug reports for this plugin on GitHub: [https://github.com/samiahmedsiddiqui/prevent-xss-vulnerability/issues](https://github.com/samiahmedsiddiqui/prevent-xss-vulnerability/issues).
   Please remember that GitHub is for bug reports only, not general support.

By using this plugin and following these recommendations, you can significantly 
improve your website’s defense against XSS attacks.

## Snimke zaslona

[⌊It removes the parameters from the URL which are used in XSS Attack and redirects
the user (Recommended).⌉⌊It removes the parameters from the URL which are used in
XSS Attack and redirects the user (Recommended).⌉[

It removes the parameters from the URL which are used in XSS Attack and redirects
the user (Recommended).

[⌊It encodes the parameters from the URL which are used in XSS Attack.⌉⌊It encodes
the parameters from the URL which are used in XSS Attack.⌉[

It encodes the parameters from the URL which are used in XSS Attack.

[⌊It escapes the HTML from the $_GET PHP variable which is mostly used to read the
data from the URL (Recommended).⌉⌊It escapes the HTML from the $_GET PHP variable
which is mostly used to read the data from the URL (Recommended).⌉[

It escapes the HTML from the `$_GET` PHP variable which is mostly used to read the
data from the URL (Recommended).

[⌊Add the message in developer console for the user to alert about the XSS attack.⌉⌊
Add the message in developer console for the user to alert about the XSS attack.⌉[

Add the message in developer console for the user to alert about the XSS attack.

[⌊Show message in developer console to alert user about the Self-XSS attack. This
message can be customized from the settings page.⌉⌊Show message in developer console
to alert user about the Self-XSS attack. This message can be customized from the
settings page.⌉[

Show message in developer console to alert user about the Self-XSS attack. This 
message can be customized from the settings page.

## Instalacija

You can install this plugin either through your WordPress dashboard or manually 
via FTP.

**From within WordPress**

 1. Go to ‘Plugins > Add New’.
 2. Search for `Prevent XSS Vulnerability`.
 3. Click “Activate” for `Prevent XSS Vulnerability` on your Plugins page.
 4. Then, follow the [after activation](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/?output_format=md#after-activation)
    steps below.

**Manually**

 1. Upload the `prevent-xss-vulnerability` folder to the `/wp-content/plugins/` directory.
 2. Activate Prevent XSS Vulnerability through the ‘Plugins’ menu in WordPress.
 3. Then, follow the [after activation](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/?output_format=md#after-activation)
    steps below.

**After activation**

 1. Go to the `Prevent XSS Vulnerability` page in your WordPress Admin Dashboard.
 2. Adjust the settings to fit your website’s needs.
 3. That’s it! You’re done.

## Pitanja i odgovori

### Q. Why should I install this plugin?

A. Installing this plugin is the easiest way to protect your site from XSS Vulnerabilities.

### Q. Does this plugin escape HTML when printing search results?

A. Yes, this plugin escapes HTML in the `$_GET` variable, which is often used to
display data from the URL in HTML. However, if your site heavily relies on `$_GET`
for other functions, you might need to do thorough testing to ensure everything 
works correctly.

### Q. Does this plugin conflict with any other plugins

A. While we haven’t received reports of major conflicts, it’s always a good idea
to thoroughly test your website after installing any new plugin.

## Recenzije

![](https://secure.gravatar.com/avatar/a5598ead2e170886cf535f3e5a45380707bd4128fa0588f635857eb0994bdb01?
s=60&d=retro&r=g)

### 󠀁[simple buy effective](https://wordpress.org/support/topic/simple-buy-effective/)󠁿

 [roadlink](https://profiles.wordpress.org/roadlink/) 01. siječnja 2024.

I got positive on scan websites

![](https://secure.gravatar.com/avatar/94e75ac0834c4a82d796f0e9cddca1ea984daaf630e2983c630db861ea0a38a0?
s=60&d=retro&r=g)

### 󠀁[Awesome plugin for security issues.](https://wordpress.org/support/topic/awesome-plugin-for-security-issues/)󠁿

 [Sakthivel](https://profiles.wordpress.org/saravanankanagaraj/) 22. lipnja 2021.
1 odgovor

Thanks for the awesome plugin. it helps to fix the XSS attacks. But we need to add
more special charter to include manually like exclude list. this helps for every
one-> feature Request. keep rocking!!!… Regards, Saravanan

![](https://secure.gravatar.com/avatar/2382907deabb7fda202bfe02310a0c1c25ce5f37c85127fcd7eeb36503f761e6?
s=60&d=retro&r=g)

### 󠀁[Excellent](https://wordpress.org/support/topic/excellent-10267/)󠁿

 [randystepanek](https://profiles.wordpress.org/randystepanek/) 22. siječnja 2021.

We were being harassed by our ISOs because the Acunetix scans kept coming back with
HIGHs. Always XSS. We tried everything the report recommended as a remediation…nothing
worked. This plugin should come bundled with WP. Or at the very least be added to
the list of recommendations Acunetix suggests. Thank you for creating and sharing
it.

![](https://secure.gravatar.com/avatar/435ee9bc61a759a40602fde858337f9f5302b4b67fd064de9a432161b119df8b?
s=60&d=retro&r=g)

### 󠀁[Very useful plugin.](https://wordpress.org/support/topic/very-useful-plugin-895/)󠁿

 [Mohamed Abd Elhalim](https://profiles.wordpress.org/mandooox/) 27. prosinca 2019.

Very useful plugin, thank you!

![](https://secure.gravatar.com/avatar/e46430994df2a5b09c5e57928e1907edc812a2f71fa2f33a625f8619d07b064a?
s=60&d=retro&r=g)

### 󠀁[Seems to work well!](https://wordpress.org/support/topic/seems-to-work-well-30/)󠁿

 [](https://profiles.wordpress.org/adamwking/) 04. prosinca 2019.

We were directed by a security researcher to an XSS vulnerability on our site, and
this plugin seems to have solved the issue. Only plugin with this functionality 
I was able to find. Fairly straightforward and flexible.

![](https://secure.gravatar.com/avatar/28a9656f56bacae7edadb5c8d4bc7be521a644b68a96d53d7d40e3d04aa9c273?
s=60&d=retro&r=g)

### 󠀁[Superb Plugin. Saved my site](https://wordpress.org/support/topic/superb-plugin-saved-my-site/)󠁿

 [BiLaL](https://profiles.wordpress.org/bilaliqbal9525331/) 10. svibnja 2019.

Superb Plugin. Saved my site

 [ Pročitajte svih 7 recenzija ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/)

## Suradnici i Programeri

“Prevent XSS Vulnerability” je softver otvorenog koda. Sljedeće osobe su doprinijele
ovom dodatku.

Suradnici

 *   [ Sami Ahmed Siddiqui ](https://profiles.wordpress.org/sasiddiqui/)

“Prevent XSS Vulnerability” je preveden na 1 jezik. Zahvala [prevoditeljima](https://translate.wordpress.org/projects/wp-plugins/prevent-xss-vulnerability/contributors)
za njihov doprinos.

[Prevedite “Prevent XSS Vulnerability” na svoj jezik.](https://translate.wordpress.org/projects/wp-plugins/prevent-xss-vulnerability)

### Zainteresirani ste za razvoj?

[Pregledajte kôd](https://plugins.trac.wordpress.org/browser/prevent-xss-vulnerability/),
pogledajte [SVN spremište](https://plugins.svn.wordpress.org/prevent-xss-vulnerability/)
ili se pretplatite na [dnevnik razvoja](https://plugins.trac.wordpress.org/log/prevent-xss-vulnerability/)
od [RSS](https://plugins.trac.wordpress.org/log/prevent-xss-vulnerability/?limit=100&mode=stop_on_copy&format=rss).

## Dnevnik promjena

#### 2.1.0 – July 03, 2025

 * **Key Changes & Improvements:**
    - **Enhanced Console Visibility:** The prominent “Stop!” message now appears
      in a much larger (48px), bold, red font with a black text shadow to grab immediate
      attention. The main warning message also uses a larger, more readable font(
      20px).
    - **Improved Console Grouping:** The entire Self-XSS warning is now grouped 
      within a `console.group('Self-XSS Warning')` block. This keeps all related
      messages together in the developer console, making the warning stand out and
      preventing it from getting lost among other console output.

#### Earlier versions

 * For a detailed changelog of earlier versions, please refer to the separate `changelog.
   txt` file.

## Meta

 *  Version **2.1.0**
 *  Zadnje ažuriranje **prije 1 godina**
 *  Aktivnih instalacija **6.000+**
 *  WordPress inačica ** 3.5 ili viša **
 *  Testirano do **6.8.11**
 *  PHP inačica ** 5.6 ili viša **
 *  Jezici
 * [English (Canada)](https://en-ca.wordpress.org/plugins/prevent-xss-vulnerability/)
   i [English (US)](https://wordpress.org/plugins/prevent-xss-vulnerability/).
 *  [Prevedite na vaš jezik](https://translate.wordpress.org/projects/wp-plugins/prevent-xss-vulnerability)
 * Oznaka
 * [attack](https://hr.wordpress.org/plugins/tags/attack/)[cross-site scripting](https://hr.wordpress.org/plugins/tags/cross-site-scripting/)
   [security](https://hr.wordpress.org/plugins/tags/security/)[vulnerability](https://hr.wordpress.org/plugins/tags/vulnerability/)
   [xss](https://hr.wordpress.org/plugins/tags/xss/)
 *  [Napredni pogled](https://hr.wordpress.org/plugins/prevent-xss-vulnerability/advanced/)

## Ocjena

 5 out of 5 stars.

 *  [  7 5-star reviews     ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/prevent-xss-vulnerability/reviews/)

## Suradnici

 *   [ Sami Ahmed Siddiqui ](https://profiles.wordpress.org/sasiddiqui/)

## Podrška

Želite nešto reći? Potrebna vam je pomoć?

 [Pregledaj forum za podršku](https://wordpress.org/support/plugin/prevent-xss-vulnerability/)