CVE-2020-37233 WordPress Plugin Buddypress 6.2.0 Persistent Cross-Site Scripting

Medium 5.1 Published Updated

Authenticated moderators can inject malicious scripts via figure parameters, leading to session hijacking and phishing when administrators view the content.

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
None listed

What is CVE-2020-37233?

CVE-2020-37233 is a medium-severity cross-site scripting vulnerability in Wordpress Buddypress, published on 16 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

WordPress Plugin Buddypress 6.2.0 contains a persistent cross-site scripting vulnerability that allows authenticated attackers with moderator privileges to inject malicious script code through the figure parameter in wp:html blocks. Attackers can inject iframe elements with event handlers like onload that execute when administrators or privileged users preview or view the affected page content, enabling session hijacking and persistent phishing attacks.

Weakness: CWE-79

Which versions are affected by CVE-2020-37233?

How do I fix CVE-2020-37233?

No fix has been published for CVE-2020-37233 yet. Limit exposure of the affected software until one is available.

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-2020-37233 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37233 exists.

Sources

Also known as GHSA-98w5-3cm8-qr32.

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