CVE-2021-27912 XSS vulnerability on asset view
Authenticated users with asset permissions can execute arbitrary JavaScript via inline JS in asset titles, 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
- Available
What is CVE-2021-27912?
CVE-2021-27912 is a high-severity cross-site scripting vulnerability in Mautic, published on 30 Aug 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
Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title and adding a broken image URL as a remote asset. This can only be leveraged by an authenticated user with permission to create or edit assets.
Weakness: CWE-79
Which versions are affected by CVE-2021-27912?
4 open source packages ship an affected version, including mautic/core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mautic/core Packagist | All versions | 3.3.4 |
mautic/core Packagist | All versions | 3.3.4 |
mautic/core Packagist | From 4.0.0-alpha1 | 4.0.0 |
mautic/core Packagist | From 4.0.0-alpha1 | 4.0.0 |
Products include Acquia Mautic.
How do I fix CVE-2021-27912?
Upgrade mautic/core to a fixed version for your release line: 3.3.4 or 4.0.0.
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-2021-27912 being exploited?
There is no known exploitation of CVE-2021-27912 in the wild and no public exploit code.
Other vulnerabilities in Mautic
- CVE-2022-25772 Cross-site Scripting vulnerability in Mautic's tracking pixel functionality
- CVE-2020-35125 Mautic is vulnerable to XSS vulnerability
- CVE-2020-35124 XSS vulnerability leveraged through referrers could allow un-authorized admin access in Mautic
- CVE-2024-47051 Remote Code Execution & File Deletion in Asset Uploads
- CVE-2020-35128 Mautic stored Cross-site Scripting (XSS)
Sources
Also known as GHSA-rh5w-82wh-jhr8.