CVE-2021-29450: WordPress Authenticated disclosure of password-protected posts and pages
First published: Thu Apr 15 2021(Updated: )
Wordpress is an open source CMS. One of the blocks in the WordPress editor can be exploited in a way that exposes password-protected posts and pages. This requires at least contributor privileges. This has been patched in WordPress 5.7.1, along with the older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.
Credit: security-advisories@github.com
| 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 | |
| debian/wordpress | <=5.6.1+dfsg1-1<=5.7+dfsg1-1<=5.0.11+dfsg1-0+deb10u1 | 5.7.1+dfsg1-1 5.0.12+dfsg1-0+deb10u1 |
| WordPress WordPress | >=4.7<5.7.1 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhq
- https://security-tracker.debian.org/tracker/CVE-2021-29450
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29450
- https://security-tracker.debian.org/tracker/CVE-2021-29447
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh
- https://salsa.debian.org/debian/wordpress/-/commit/482426d90c4065cbb6c2f9cac342bf9d10a8f6d5
- https://bugs.debian.org/987065
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987065
- 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
Frequently Asked Questions
What is CVE-2021-29450?
CVE-2021-29450 is a vulnerability in WordPress that allows password-protected posts and pages to be exposed.
What is the severity of CVE-2021-29450?
CVE-2021-29450 has a severity rating of 4.3, which is considered medium.
How can CVE-2021-29450 be exploited?
CVE-2021-29450 can be exploited by taking advantage of a specific block in the WordPress editor, requiring at least contributor privileges.
Which versions of WordPress are affected by CVE-2021-29450?
WordPress versions 4.7 to 5.7.1 are affected by CVE-2021-29450.
How can I fix CVE-2021-29450?
The vulnerability has been patched in WordPress 5.7.1, and users are advised to update to this version or the latest minor release for older affected versions.
- collector/security-tracker-debian
- collector/debian-bugs
- alias/CVE-2021-29450
- agent/type
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- agent/last-modified-date
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- vendor/wordpress
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- version/debian debian linux/9.0
- version/debian debian linux/10.0