CVE-2022-42486 baserCMS vulnerable to stored Cross-site Scripting
An authenticated administrator can inject arbitrary scripts into user group management, leading to stored cross-site scripting attacks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-42486?
CVE-2022-42486 is a medium-severity cross-site scripting vulnerability in Basercms Basercms, published on 7 Dec 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Stored cross-site scripting vulnerability in User group management of baserCMS versions prior to 4.7.2 allows a remote authenticated attacker with an administrative privilege to inject an arbitrary script.
Weakness: CWE-79
Which versions are affected by CVE-2022-42486?
2 open source packages ship an affected version, including baserproject/basercms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
baserproject/basercms Packagist | All versions | 4.7.2 |
baserproject/basercms Packagist | All versions | 4.7.2 |
Products include Basercms Basercms.
How do I fix CVE-2022-42486?
Upgrade baserproject/basercms to 4.7.2 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-2022-42486 being exploited?
There is no known exploitation of CVE-2022-42486 in the wild and no public exploit code.
Other vulnerabilities in Basercms Basercms
- CVE-2023-25654 baserCMS File Uploader Remote Code Execution (RCE) vulnerability
- CVE-2023-25655 baserCMS allows any file to be uploaded
- CVE-2017-10842 baserCMS SQL Injection vulnerability
- CVE-2026-30880 baserCMS: OS command injection vulnerability in installer
- CVE-2026-21861 baserCMS: OS Command Injection Leading to Remote Code Execution (RCE)
Sources
Also known as GHSA-7w2v-35j3-xrm9.