Several new WordPress plugin and theme vulnerabilities were disclosed during the second half of October, so we want to keep you aware. In this post, we cover recent WordPress plugin and theme vulnerabilities and what to do if you are running one of the vulnerable plugins or themes on your website.
We divide the WordPress Vulnerability Roundup into four different categories:
- 1. WordPress core
- 2. WordPress plugins
- 3. WordPress themes
- 4. Breaches from around the web
*We include breaches from around the web because it is essential to also be aware of vulnerabilities outside of the WordPress ecosystem. Exploits to server software can expose sensitive data. Database breaches can expose the credentials for the users on your site, opening the door for attackers to access your site.
Note: You can skip ahead to the Vulnerability Summary Chart for the second part of October 2019 listed below.
WordPress Core Vulnerabilities
WordPress Plugin Vulnerabilities
Several new WordPress plugin vulnerabilities have been discovered this October. Make sure to follow the suggested action below to update the plugin or completely uninstall it.
1. All In One SEO Pack
All In One SEO Pack version 3.2.6 and below is vulnerable to a Stored Cross-Site Scripting attack. An attacker will need to use an authenticated user to exploit the vulnerability. If the attacker gains access to an admin user, they could execute PHP code and compromise the server.
What You Should Do
2. Broken Link Checker
Broken Link Checker version 1.11.8 and below is vulnerable to an Authenticated Cross-Site Scripting attack.
What You Should Do
3. Events Manager
Events Manager version 5.9.5 and below is vulnerable to a Stored Cross-Site Scripting attack.
What You Should Do
4. EU Cookie Law
EU Cookie Law version 3.0.6 and below is vulnerable to a Cross-Site Scripting attack. The vulnerability will allow an attacker to insert arbitrary HTML and Javascript to modify the Font Color, Background Color, and “Disable Cookie” Text settings in the plugin.
What You Should Do
5. Fast Velocity Minify
Fast Velocity Minify version 2.7.6 and below has a vulnerability that would allow an authenticated attacker to discover the full root path of the WordPress install. A Full Path Vulnerability in of itself isn’t critical. However, the know the root path would give an attacker the needed information to take advantage of other more severe vulnerabilities.
What You Should Do
6. SyntaxHighlighter Evolved
SyntaxHighlighter Evolved version 3.5.0 and below is vulnerable to a Cross-Site Scripting attack.
What You Should Do
7. WP HTML Mail
WP HTML Mail version 2.9.0.3 and below is vulnerable to an HTML Injection attack.
What You Should Do
8. Sliced Invoices
Sliced Invoices version 3.8.2 and below has multiple vulnerabilities. The vulnerabilities include an Authenticated SQL Injection, Authenticated Reflected Cross-Site Scripting, Unauthenticated Information Disclosure allowing access to invoices, and lack of Cross-Site Request Forgery and Authentication checks.
What You Should Do
9. Zoho CRM Lead Magnet Plugin
Zoho CRM Lead Magnet Plugin version 1.6.9 is vulnerable to an Authenticated Cross-Site Scripting attack. The vulnerability would allow an attacker to execute malicious code in a user’s browser.
What You Should Do
10. About Author
About Author version 1.3.9 and below is vulnerable to an Authenticated Cross-Site Scripting attack.
What You Should Do
11. Email Templates
Email Templates version 1.3 and below is vulnerable to an HTML Injection attack.
What You Should Do
12. Groundhogg
Groundhogg version 1.3.11.3 and below is vulnerable to an Authenticated Cross-Site Scripting and SQL Injection attack.
What You Should Do
13. WP Email Template
WP Email Template version 2.2.10 and below is vulnerable to an HTML Injection attack.
What You Should Do
WordPress Themes
14. InJob
InJob version 3.3.7 and below is vulnerable to a Cross-Site Scripting attack.
What You Should Do
How to Be Proactive About WordPress Theme & Plugin Vulnerabilities
Running outdated software is the number one reason WordPress sites are hacked. It is crucial to the security of your WordPress site that you have an update routine. You should be logging into your sites at least once a week to perform updates.
Automatic Updates Can Help
Automatic updates are a great choice for WordPress websites that don’t change very often. Lack of attention often leaves these sites neglected and vulnerable to attacks. Even with recommended security settings, running vulnerable software on your site can give an attacker an entry point into your site.
Using the iThemes Security Pro plugin’s Version Management feature, you can enable automatic WordPress updates to ensure you are getting the latest security patches. These settings help protect your site with options to automatically update to new versions or to increase user security when the site’s software is outdated.
Version Management Update Options
- WordPress Updates –Automatically install the latest WordPress release.
- Plugin Automatic Updates – Automatically install the latest plugin updates. This should be enabled unless you actively maintain this site on a daily basis and install the updates manually shortly after they are released.
- Theme Automatic Updates – Automatically install the latest theme updates. This should be enabled unless your theme has file customizations.
- Granular Control over Plugin and Theme updates – You may have plugins/themes that you’d like to either manually update, or delay the update until the release has had time to prove stable. You can choose Custom for the opportunity to assign each plugin or theme to either update immediately (Enable), not update automatically at all (Disable) or update with a delay of a specified amount of days (Delay).
Strengthening and Alerting to Critical Issues
- Strengthen Site When Running Outdated Software – Automatically add extra protections to the site when an available update has not been installed for a month. The iThemes Security plugin will automatically enable stricter security when an update has not been installed for a month. First, it will force all users that do not have two-factor enabled to provide a login code sent to their email address before logging back in. Second, it will disable the WP File Editor (to block people from editing plugin or theme code), XML-RPC pingbacks, and block multiple authentication attempts per XML-RPC request (both of which will make XML-RPC stronger against attacks without having to turn it off completely).
- Scan for Other Old WordPress Sites – This will checks for other outdated WordPress installs on your hosting account. A single outdated WordPress site with a vulnerability could allow attackers to compromise all the other sites on the same hosting account.
- Send Email Notifications – For issues that require intervention, an email is sent to admin-level users.
Breaches From Around the Web
1. PHP Remote Code Execution Vulnerability on NGINX Servers
If one of your sites is on an NGINX server that has PHP-FPM enabled, you could be vulnerable to a Remote Code Execution attack.
You should reach out to your host immediately to ensure your server is running one of these patched versions of PHP 7.3.11, 7.2.24 or 7.1.33.
Summary of WordPress Vulnerabilities for
October 2019, Part 2
All In One SEO Pack version 3.2.6 and below is vulnerable to a Stored Cross-Site Scripting attack.
Broken Link Checker version 1.11.8 and below is vulnerable to an Authenticated Cross-Site Scripting attack.
Events Manager version 5.9.5 and below is vulnerable to a Stored Cross-Site Scripting attack.
EU Cookie Law version 3.0.6 and below is vulnerable to a Cross-Site Scripting attack.
Fast Velocity Minify version 2.7.6 and below has a vulnerability that would allow an authenticated attacker to discover the full root path of the WordPress install.
SyntaxHighlighter Evolved version 3.5.0 and below is vulnerable to a Cross-Site Scripting attack.
WP HTML Mail version 2.9.0.3 and below is vulnerable to an HTML Injection attack.
Sliced Invoices version 3.8.2 and below has multiple vulnerabilities. The vulnerabilities include an Authenticated SQL Injection, Authenticated Reflected Cross-Site Scripting, Unauthenticated Information Disclosure allowing access to invoices, and lack of Cross-Site Request Forgery and Authentication checks.
Zoho CRM Lead Magnet Plugin version 1.6.9 is vulnerable to an Authenticated Cross-Site Scripting attack.
About Author version 1.3.9 and below is vulnerable to an Authenticated Cross-Site Scripting attack.
Email Templates version 1.3 and below is vulnerable to an HTML Injection attack.
Groundhogg version 1.3.11.3 and below is vulnerable to an Authenticated Cross-Site Scripting and SQL Injection attack.
WP Email Template version 2.2.10 and below is vulnerable to an HTML Injection attack.
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Hi,
Thanks for this and past advisories.
Looks like two new developments with Broken Link checker:
– new version released
– new plugin owner: WPMUDEV
See: https://wordpress.org/support/topic/important-announcement-2/
So perhaps we can keep this plugin installed?
Cheers,
Richard