CVE-2021-24319 Bello < 1.6.0 - Authenticated Cross-Site Scripting (XSS) and XFS

Medium 5.4 Published Updated

Authenticated attackers can inject malicious scripts via the post_excerpt parameter in the Bello WordPress theme, potentially leading to session hijacking or code execution.

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-2021-24319?

CVE-2021-24319 is a medium-severity cross-site scripting vulnerability in BoldThemes Bello - Directory & Listing, published on 1 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Bello - Directory & Listing WordPress theme before 1.6.0 did not properly sanitise its post_excerpt parameter before outputting it back in the shop/my-account/bello-listing-endpoint/ page, leading to a Cross-Site Scripting issue

Weakness: CWE-79

Which versions are affected by CVE-2021-24319?

It affects 1 product.

Products include Bold-Themes Bello.

How do I fix CVE-2021-24319?

No fix has been published for CVE-2021-24319 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-2021-24319 being exploited?

There is no known exploitation of CVE-2021-24319 in the wild and no public exploit code.

Sources

Also known as GHSA-c84c-76xv-wmp8.

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