CVE-2020-28039
First published: Mon Nov 02 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wordpress | 5.0.15+dfsg1-0+deb10u1 5.0.19+dfsg1-0+deb10u1 5.7.8+dfsg1-0+deb11u2 6.1.1+dfsg1-1 6.3.1+dfsg1-1 | |
| WordPress WordPress | <5.5.2 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 |
Remedy
https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad
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Reference Links
- https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad
- https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/
- https://wpscan.com/vulnerability/10452
- https://security-tracker.debian.org/tracker/CVE-2020-28039
- https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHVNK2WYAM3ZTCXTFSEIT56IKLVJHU3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VAVVYJKA2I6CRQUINECDPBGWMQDEG244/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUXVUAKL2HL4QYJEPHBNVQQWRMFMII2Y/
- https://www.debian.org/security/2020/dsa-4784
Frequently Asked Questions
What is CVE-2020-28039?
CVE-2020-28039 is a vulnerability in WordPress before version 5.5.2 that allows arbitrary file deletion due to improper determination of protected meta keys.
How severe is CVE-2020-28039?
CVE-2020-28039 has a severity rating of 9.1 (critical).
How does CVE-2020-28039 affect WordPress?
CVE-2020-28039 affects WordPress versions before 5.5.2.
How can I fix CVE-2020-28039?
To fix CVE-2020-28039, you should update your WordPress installation to version 5.5.2 or later.
Where can I find more information about CVE-2020-28039?
You can find more information about CVE-2020-28039 in the following references: [Reference 1](https://github.com/WordPress/wordpress-develop/commit/d5ddd6d4be1bc9fd16b7796842e6fb26315705ad), [Reference 2](https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/), [Reference 3](https://wpscan.com/vulnerability/10452).
- collector/security-tracker-debian
- agent/references
- agent/severity
- agent/author
- agent/type
- agent/description
- agent/event
- agent/first-publish-date
- agent/softwarecombine
- agent/last-modified-date
- agent/remedy
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/wordpress
- canonical/wordpress wordpress
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/20.04