CVE-2020-11029 Cross-site scripting in stats method (object cache) in WordPress
Attackers can execute cross-site scripting attacks via the stats method in WordPress object cache, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-11029?
CVE-2020-11029 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 30 Apr 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In affected versions of WordPress, a vulnerability in the stats() method of class-wp-object-cache.php can be exploited to execute cross-site scripting (XSS) attacks. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).
Weakness: CWE-79
Which versions are affected by CVE-2020-11029?
2 open source packages ship an affected version, including wordpress and wordpress-multisite. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
wordpress Bitnami | From 3.7.0 | 3.7.33, 3.8.33, 3.9.31, 4.0.30, 4.1.30, 4.2.27, 4.3.23, 4.4.22, 4.5.21, 4.6.18, 4.7.17, 4.8.13, 4.9.14, 5.0.9, 5.1.5, 5.2.6, 5.3.3, 5.4.1 |
wordpress-multisite Bitnami | From 3.7.0 | 3.7.33, 3.8.33, 3.9.31, 4.0.30, 4.1.30, 4.2.27, 4.3.23, 4.4.22, 4.5.21, 4.6.18, 4.7.17, 4.8.13, 4.9.14, 5.0.9, 5.1.5, 5.2.6, 5.3.3, 5.4.1 |
Products include Debian Debian Linux, Wordpress Wordpress.
How do I fix CVE-2020-11029?
Upgrade wordpress to a fixed version for your release line: 3.7.33, 3.8.33, 3.9.31 or 4.0.30.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-11029 being exploited?
There is no known exploitation of CVE-2020-11029 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BIT-wordpress-2020-11029, BIT-wordpress-multisite-2020-11029, DEBIAN-CVE-2020-11029, GHSA-568w-8m88-8g2c, UBUNTU-CVE-2020-11029.