CVE-2020-28034 Cross-site scripting in n/a
Cross-site scripting vulnerability in WordPress allows attackers to inject malicious scripts via global variables, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-28034?
CVE-2020-28034 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 31 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
WordPress before 5.5.2 allows XSS associated with global variables.
Weakness: CWE-79
Which versions are affected by CVE-2020-28034?
2 open source packages ship an affected version, including wordpress and wordpress-multisite. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
wordpress Bitnami | All versions | 5.5.2 |
wordpress-multisite Bitnami | All versions | 5.5.2 |
Products include Debian Debian Linux, Fedoraproject Fedora, Wordpress Wordpress.
How do I fix CVE-2020-28034?
Upgrade wordpress to 5.5.2 or later.
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-2020-28034 being exploited?
There is no known exploitation of CVE-2020-28034 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BIT-wordpress-2020-28034, BIT-wordpress-multisite-2020-28034, DEBIAN-CVE-2020-28034, GHSA-q684-cq3q-r3gp, UBUNTU-CVE-2020-28034.