Menu
Serious flaw fixed in widely used WordPress plug-in

Serious flaw fixed in widely used WordPress plug-in

The persistent XSS vulnerability could allow the hijacking of admin accounts

If you're running a WordPress website and you have the hugely popular All in One SEO Pack plug-in installed, it's a good idea to update it as soon as possible. The latest version released Friday fixes a flaw that could be used to hijack the site's admin account.

The vulnerability is in the plug-in's Bot Blocker functionality and can be exploited remotely by sending HTTP requests with specifically crafted headers to the website.

The Bot Blocker feature is designed to detect and block spam bots based on their user agent and referer header values, according to security researcher David Vaartjes, who found and reported the issue.

If the Track Blocked Bots setting is enabled -- it's not by default -- the plug-in will log all requests that were blocked and will display them on an HTML page inside the site's admin panel.

Because the plug-in fails to properly sanitize the requests before displaying them, attackers can inject malicious JavaScript code in the request headers, allowing the code to end up as part of the HTML page.

This allows for a persistent cross-site scripting (XSS) attack, where the rogue code will be executed every time a user views the log page. Because that page is in the admin panel, that user will likely be the administrator, and the code can steal their session tokens.

These tokens are values stored inside the browser that allows a website to identify a logged in user. By placing these values in their own browsers, attackers could access the website as an administrator without having to authenticate.

The rogue code could also force the administrator's browser to perform an action that they haven't authorized.

The All in One SEO Pack developer, a company called Semper Fi Web Design, has released version 2.3.7 Friday in order to fix this vulnerability. Users are advised to upgrade to this version as soon as possible or to make sure they don't have the Track Blocked Bots setting enabled.

All in One SEO Pack provides a lot of search engine optimization features meant to increase a website's visibility in search results. According to statistics from the WordPress plug-ins repository, it is popular, with over one million active installations.

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Slideshows

IN PICTURES: Ingram Micro Innovation hits Auckland with Hewlett Packard Enterprise

IN PICTURES: Ingram Micro Innovation hits Auckland with Hewlett Packard Enterprise

Ingram Micro completed its nationwide roadshow in Auckland last month, kicking off its Innovation Hour series with Hewlett Packard Enterprise. Uncovering the latest in storage, networking and servers, the event outlined key market trends for resellers in 2016 and beyond.

IN PICTURES: Ingram Micro Innovation hits Auckland with Hewlett Packard Enterprise
IN PICTURES: FireEye celebrates channel at 2016 Partner Conference

IN PICTURES: FireEye celebrates channel at 2016 Partner Conference

FireEye welcomed 143 channel partners and distributors to FireEye's 2016 annual Partner Conference, FireEye A/NZ Momentum - held at Establishment in Sydney. Delegates heard from senior trans-Tasman channel leaders, marketing and the product divisions in the morning, with FireEye customers, incident responders and threat intelligence analysts sharing knowledge during the afternoon.

IN PICTURES: FireEye celebrates channel at 2016 Partner Conference
​IN PICTURES: Disruption in the data centre - Can the Kiwi channel capitalise?​

​IN PICTURES: Disruption in the data centre - Can the Kiwi channel capitalise?​

With New Zealand businesses now open to innovation, the industry sits on the cusp of significant disruption in the data centre. Driven by software-defined networking, the future of the data centre is fast becoming reality, as the channel seeks to keep up, keep innovating and keep growing. APC by Schneider Electric, Lenovo and key partners outlined how the channel can capitalise at The Grill restaurant in Auckland.

​IN PICTURES: Disruption in the data centre - Can the Kiwi channel capitalise?​
Show Comments