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    CVE-2021-29447

    Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.

    Published:Apr 15, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 15, 2021
    EPSS Score:0.89757
    CVSS Score:7.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.htmlhttps://blog.sonarsource.com/wordpress-xxe-security-vulnerability/http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.htmlhttps://blog.sonarsource.com/wordpress-xxe-security-vulnerability/https://www.exploit-db.com/exploits/50304https://github.com/0xRar/CVE-2021-29447-PoChttps://github.com/0xricksanchez/CVE-2021-29447https://github.com/Abdulazizalsewedy/CVE-2021-29447https://github.com/andyhsu024/CVE-2021-29447https://github.com/ArtemCyberLab/Project-Project-Chimera-Exploiting-a-Modern-WordPress-XXE-to-Pillage-Secrets-https://github.com/AssassinUKG/CVE-2021-29447https://github.com/b-abderrahmane/CVE-2021-29447-POChttps://github.com/danilo1992-sys/CVE-2021-29447https://github.com/davids52/cve-2021-29447_auto-scripthttps://github.com/dnr6419/CVE-2021-29447https://github.com/elf1337/blind-xxe-controller-CVE-2021-29447https://github.com/G01d3nW01f/CVE-2021-29447https://github.com/M3l0nPan/wordpress-cve-2021-29447https://github.com/magicrc/CVE-2021-29447https://github.com/mega8bit/exploit_cve-2021-29447https://github.com/motikan2010/CVE-2021-29447https://github.com/rdana55/CVE-2021-29447-PoChttps://github.com/specializzazione-cyber-security/demo-CVE-2021-29447-lezionehttps://github.com/Tea-On/CVE-2021-29447-Authenticated-XXE-WordPress-5.6-5.7https://github.com/thomas-osgood/CVE-2021-29447https://github.com/Val-Resh/CVE-2021-29447-POChttps://github.com/viardant/CVE-2021-29447https://github.com/Vulnmachines/wordpress_cve-2021-29447

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-221 Data Serialization External Entities Blowup

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    References

    http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html
    http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html
    https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/
    https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
    https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
    https://wordpress.org/news/category/security/
    https://www.debian.org/security/2021/dsa-4896
    http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html
    http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html
    https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/
    https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
    https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
    https://wordpress.org/news/category/security/
    https://www.debian.org/security/2021/dsa-4896

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High