In the past couple of years, we’ve been tracking a long-lasting campaign responsible for injecting malicious scripts into WordPress sites. This campaign leverages old vulnerabilities (patched a long time ago) found in a variety of outdated themes and plugins. However, it also adds new vulnerabilities as soon as they are disclosed—like the recent Social Warfare […]
Tag Archives: WordPress Security
SQL Injection in Advance Contact Form 7 DB
As part of our regular research audits for our Sucuri Firewall, we discovered an SQL injection vulnerability affecting 40,000+ users of the Advanced Contact Form 7 DB WordPress plugin. Current State of the Vulnerability This plugin saves all Contact Form 7 submissions to the database using a friendly interface. Though the bug has been fixed […]
Attacks on Closed WordPress Plugins
The WordPress plugin repository team may “close” plugins and restrict downloads when they become aware of a security issue that the developer cannot fix quickly. However, bad actors are actively monitoring the WordPress plugin repository, paying close attention to these closed plugins. This may result in massive attacks if the attacker is able to identify the […]
DDoS Targeting WordPress Search
Have you ever stopped to think about how many resources a search engine has or if your website could handle the same amount of search traffic that Google does? Search engines play an important role on the internet and with how websites perform. One may say that they are the actual doorway to the online […]
SQL Injection in Duplicate-Page WordPress Plugin
While investigating the Duplicate Page plugin we have discovered a dangerous SQL Injection vulnerability. It was not being abused externally and impacts over 800,000 sites. It’s urgency is defined by the associated DREAD score that looks at damage, reproducibility, exploitability, affected users, and discoverability. A key contributor to the criticality of this vulnerability is that […]
Malware Campaigns Sharing Network Resources: r00ts.ninja
We recently noticed an interesting example of network infrastructure resources being used over a period of time by more than one large scale malware campaign (e.g redirected traffic, cryptomining). This was discovered when reviewing sources of the various malicious domains used in a recent WordPress plugin exploit wave. Mass Infection of WordPress Websites The latest Easy […]
Stored XSS Patched in WordPress 5.1.1
WordPress recently released an update, 5.1.1, which patches a stored XSS vulnerability in the platform’s comment system. Even 10 days after the release of this security patch, around 60% of all WordPress sites scanned by our services didn’t have this fix applied. We are not aware of any exploit attempts using the vulnerability currently. Should […]
Zero-Day Stored XSS in Social Warfare
A zero-day vulnerability has just appeared in the WordPress plugin world, affecting over 70,000 sites using the Social Warfare plugin. The plugin is vulnerable to a Stored XSS (Cross-Site Scripting) vulnerability and has been removed from the plugin repository. Attacks can be conducted by any users visiting the site. A patch has been released and […]
0day Vulnerability in Easy WP SMTP Affects Thousands of Sites
The Easy WP SMTP plugin authors have released a new update, fixing a very critical 0day vulnerability. When leveraged, this vulnerability gives unauthenticated attackers the power to modify any options of an affected site — ultimately leading to a complete site compromise. The vulnerability, found only in version 1.3.9, has been seen exploited in the […]
Arbitrary Directory Deletion in WP-Fastest-Cache
The WP-Fastest-Cache plugin authors released a new update, version 0.8.9.1, fixing a vulnerability (CVE-2019-6726) present during its install alongside the WP-PostRatings plugin. According to seclists.org: “A successful attack allows an unauthenticated attacker to specify a path to a directory from which files and directories will be deleted recursively. The vulnerable code path extracts the path […]
