Menu
WordPress fixes actively exploited flaw

WordPress fixes actively exploited flaw

WordPress 4.2.2 addresses two critical XSS flaws and hardens defenses for a third

A new WordPress version released Thursday fixes two critical cross-site scripting (XSS) vulnerabilities that could allow attackers to compromise websites.

One of the flaws is located in the Genericons icon font package that is used by several popular themes and plug-ins, including the default TwentyFifteen WordPress theme.

Researchers from Web security firm Sucuri warned Wednesday that they've already seen attacks targeting this XSS vulnerability.

To exploit it, attackers need to trick users to click on specifically crafted links, but once they do that, they can leverage the flaw to steal authentication cookies. If the victim is a website's administrator, they could gain full control over that website.

The vulnerability can be mitigated by removing the example.html file that is part of the Genericons package or by upgrading to the newly released WordPress 4.2.2.

"All affected themes and plugins hosted on WordPress.org (including the Twenty Fifteen default theme) have been updated today by the WordPress security team to address this issue by removing this nonessential file," the WordPress developers said in the release announcement.

Once installed, WordPress 4.2.2 scans the site's directory for the vulnerable HTML file and removes all instances of it.

In addition, the new version patches a second critical cross-site scripting flaw which, according to the WordPress developers, could let anonymous users compromise a site. It also hardens defenses for a potential XSS issue in the visual editor.


Follow Us

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags WordpresspatchesExploits / vulnerabilitiesSucuri

Featured

Slideshows

The making of an MSSP: a blueprint for growth in NZ

The making of an MSSP: a blueprint for growth in NZ

Partners are actively building out security practices and services to match, yet remain challenged by a lack of guidance in the market. This exclusive Reseller News Roundtable - in association with Sophos - assessed the making of an MSSP, outlining the blueprint for growth and how partners can differentiate in New Zealand.

The making of an MSSP: a blueprint for growth in NZ
Reseller News Platinum Club celebrates leading partners in 2018

Reseller News Platinum Club celebrates leading partners in 2018

The leading players of the New Zealand channel came together to celebrate a year of achievement at the inaugural Reseller News Platinum Club lunch in Auckland. Following the Reseller News Innovation Awards, Platinum Club provides a platform to showcase the top performing partners and start-ups of the past 12 months, with more than ​​50 organisations in the spotlight.​​​

Reseller News Platinum Club celebrates leading partners in 2018
Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP has honoured its leading partners in New Zealand during 2018, following 12 months of growth through the local channel. Unveiled during the fourth running of the ceremony in Auckland, the awards recognise and celebrate excellence, growth, consistency and engagement of standout Kiwi partners.

Meet the top performing HP partners in NZ
Show Comments