• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Allianz Life data breach exposed the data of most of its 1.4M customers

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 55

 | 

Security Affairs newsletter Round 534 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Law enforcement operations seized BlackSuit ransomware gang’s darknet sites

 | 

Arizona woman sentenced for aiding North Korea in U.S. IT job fraud scheme

 | 

Operation CargoTalon targets Russia’s aerospace with EAGLET malware,

 | 

Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access

 | 

Koske, a new AI-Generated Linux malware appears in the threat landscape

 | 

Mitel patches critical MiVoice MX-ONE Auth bypass flaw

 | 

Coyote malware is first-ever malware abusing Windows UI Automation

 | 

SonicWall fixed critical flaw in SMA 100 devices exploited in Overstep malware attacks

 | 

DSPM & AI Are Booming: $17.87B and $4.8T Markets by 2033

 | 

Stealth backdoor found in WordPress mu-Plugins folder

 | 

U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

 | 

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

 | 

Sophos fixed two critical Sophos Firewall vulnerabilities

 | 

French Authorities confirm XSS.is admin arrested in Ukraine

 | 

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • WordPress Download Manager Plugin was affected by two flaws

WordPress Download Manager Plugin was affected by two flaws

Pierluigi Paganini August 02, 2021

An attacker could exploit a vulnerability in the WordPress Download Manager plugin, tracked as CVE-2021-34639, to execute arbitrary code under specific configurations.

Researchers from Wordfence team discovered a vulnerability, tracked as CVE-2021-34639, affecting the WordPress Download Manager plugin that could allow attackers to execute arbitrary code under specific configurations.

The flaw could allow authors and other users with the upload_files capability to upload files with php4 extensions as well as other potentially executable files.

“Prior to our findings, the WordPress Download Manager plugin patched a vulnerability allowing authors and other users with the upload_files capability to upload files with php4 extensions as well as other potentially executable files. While the patch in question was sufficient to protect many configurations, it only checked the very last file extension, so it was still possible to perform a “double extension” attack by uploading a file with multiple extensions.” reads the analysis published by Wordfence. “For instance, it was possible to upload a file titled info.php.png. This file would be executable on certain Apache/mod_php configurations that use an AddHandler or AddType directive.”

The plugin was vulnerable to a double extension attack, that could occur when attackers submit a file with multiple extensions in order to get it being executed.

Experts pointed out that although the CVSS score of this vulnerability is 7.5 (High), its exploitation is not simple because in a real attack scenario the use of an .htaccess file in the downloads directory making it difficult to execute uploaded files.

The flaw impacts versions of WordPress Download Manager prior to 3.1.24. The development team behind the plugin addressed the vulnerability in May.

The development team also addressed a directory traversal issue, tracked as CVE-2021-34638 (CVSS score of 6.5) that could allow a low privileged user (i.e. a contributor) to retrieve the contents of a site’s wp-config.php file by adding a new download and carrying out a directory traversal attack using the file[page_template] parameter.

The flaw could allow an attacker to take over a website either via obtaining database credentials or by executing malicious JavaScript in an administrator’s browser session.

“Since the contents of the file provided in the file[page_template] parameter were echoed out onto the page source, a user with author-level permissions could also upload a file with an image extension containing malicious JavaScript and set the contents of file[page_template] to the path of the uploaded file. This would lead to the JavaScript in the file being executed whenever the page was viewed or previewed resulting in Stored Cross-Site Scripting.” continues the report “As such, and despite the CVSS score of this vulnerability only being a 6.5, it could be used to take over a site either via obtaining database credentials or by executing JavaScript in an administrator’s browser session.”

Follow me on Twitter: @securityaffairs and Facebook

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, WordPress Download Manager plugin )

[adrotate banner=”5″]

[adrotate banner=”13″]


facebook linkedin twitter

Cybercrime data breach hacking news information security news IT Information Security malware Pierluigi Paganini Security Affairs Security News WordPress Download Manager plugin

you might also like

Pierluigi Paganini July 27, 2025
Allianz Life data breach exposed the data of most of its 1.4M customers
Read more
Pierluigi Paganini July 27, 2025
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 55
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Allianz Life data breach exposed the data of most of its 1.4M customers

    Data Breach / July 27, 2025

    SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 55

    Malware / July 27, 2025

    Security Affairs newsletter Round 534 by Pierluigi Paganini – INTERNATIONAL EDITION

    Breaking News / July 27, 2025

    Law enforcement operations seized BlackSuit ransomware gang’s darknet sites

    Cyber Crime / July 26, 2025

    Arizona woman sentenced for aiding North Korea in U.S. IT job fraud scheme

    Intelligence / July 26, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT