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    ArchLinux: 202011-3: wordpress: multiple issues

    Date 10 Nov 2020
    392
    Posted By LinuxSecurity Advisories
    The package wordpress before version 5.5.3-1 is vulnerable to multiple issues including arbitrary code execution, cross-site request forgery, cross-site scripting, insufficient validation and privilege escalation.
    Arch Linux Security Advisory ASA-202011-3
    =========================================
    
    Severity: Critical
    Date    : 2020-11-03
    CVE-ID  : CVE-2020-28032 CVE-2020-28033 CVE-2020-28034 CVE-2020-28035
              CVE-2020-28036 CVE-2020-28037 CVE-2020-28038 CVE-2020-28039
              CVE-2020-28040
    Package : wordpress
    Type    : multiple issues
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1257
    
    Summary
    =======
    
    The package wordpress before version 5.5.3-1 is vulnerable to multiple
    issues including arbitrary code execution, cross-site request forgery,
    cross-site scripting, insufficient validation and privilege escalation.
    
    Resolution
    ==========
    
    Upgrade to 5.5.3-1.
    
    # pacman -Syu "wordpress>=5.5.3-1"
    
    The problems have been fixed upstream in version 5.5.3.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    - CVE-2020-28032 (arbitrary code execution)
    
    WordPress before 5.5.2 mishandles deserialization requests in wp-
    includes/Requests/Utility/FilteredIterator.php.
    
    - CVE-2020-28033 (insufficient validation)
    
    WordPress before 5.5.2 mishandles embeds from disabled sites on a
    multisite network, as demonstrated by allowing a spam embed.
    
    - CVE-2020-28034 (cross-site scripting)
    
    WordPress before 5.5.2 allows XSS associated with global variables.
    
    - CVE-2020-28035 (privilege escalation)
    
    WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.
    
    - CVE-2020-28036 (privilege escalation)
    
    wp-includes/class-wp-xmlrpc-server.php in WordPress before 5.5.2 allows
    attackers to gain privileges by using XML-RPC to comment on a post.
    
    - CVE-2020-28037 (arbitrary code execution)
    
    is_blog_installed in wp-includes/functions.php in WordPress before
    5.5.2 improperly determines whether WordPress is already installed,
    which might allow an attacker to perform a new installation, leading to
    remote code execution (as well as a denial of service for the old
    installation).
    
    - CVE-2020-28038 (cross-site scripting)
    
    WordPress before 5.5.2 allows stored XSS via post slugs.
    
    - CVE-2020-28039 (insufficient validation)
    
    is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2
    allows arbitrary file deletion because it does not properly determine
    whether a meta key is considered protected.
    
    - CVE-2020-28040 (cross-site request forgery)
    
    WordPress before 5.5.2 allows CSRF attacks that change a theme's
    background image.
    
    Impact
    ======
    
    A remote attacker can bypass security restrictions to post spam, spoof
    content, escalate privileges and execute arbitrary code.
    
    References
    ==========
    
    https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/
    https://github.com/WordPress/wordpress-develop/commit/add6bedf3a53b647d0ebda2970057912d3cd79d3
    https://github.com/WordPress/wordpress-develop/commit/e2142c20be3c07f7e5931014bca9a6e7f473479f
    https://github.com/WordPress/wordpress-develop/commit/2d677cd4b2e24d0b5f17a3a278c719051bbe8e35
    https://github.com/WordPress/wordpress-develop/commit/c9e6b98968025b1629015998d12c3102165a7d32
    https://github.com/WordPress/wordpress-develop/commit/2ca15d1e5ce70493c5c0c096ca0c76503d6da07c
    https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad
    https://blog.wpscan.com/2020/10/30/wordpress-5.5.2-security-release.html
    https://github.com/WordPress/wordpress-develop/commit/69e832398254b7f47d137afaed40ff186015a71b
    https://security.archlinux.org/CVE-2020-28032
    https://security.archlinux.org/CVE-2020-28033
    https://security.archlinux.org/CVE-2020-28034
    https://security.archlinux.org/CVE-2020-28035
    https://security.archlinux.org/CVE-2020-28036
    https://security.archlinux.org/CVE-2020-28037
    https://security.archlinux.org/CVE-2020-28038
    https://security.archlinux.org/CVE-2020-28039
    https://security.archlinux.org/CVE-2020-28040
    
    

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