CVE-2020-23049 Cross-site scripting in forkcms
Attackers can execute arbitrary web scripts via the Displayname field in Fork CMS, potentially compromising user sessions.
- 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-2020-23049?
CVE-2020-23049 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Oct 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
Fork CMS Content Management System v5.8.0 was discovered to contain a cross-site scripting (XSS) vulnerability in the `Displayname` field when using the `Add`, `Edit` or `Register' functions. This vulnerability allows attackers to execute arbitrary web scripts or HTML.
Weakness: CWE-79
Which versions are affected by CVE-2020-23049?
2 open source packages ship an affected version, including forkcms/forkcms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
forkcms/forkcms Packagist | All versions | 5.8.1 |
forkcms/forkcms Packagist | All versions | 5.8.1 |
Products include Fork-Cms Fork Cms.
How do I fix CVE-2020-23049?
Upgrade forkcms/forkcms to 5.8.1 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-2020-23049 being exploited?
There is no known exploitation of CVE-2020-23049 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2019-15521 Spoon Library as used in Fork CMS allows PHP object injection
- CVE-2022-0153 SQL Injection in forkcms/forkcms
- CVE-2022-1064 SQL injection through marking blog comments on bulk as spam in forkcms/forkcms
- CVE-2021-28931 Arbitrary file upload in Fork CMS
- CVE-2020-23264 Cross-Site Request Forgery in forkcms
Sources
Also known as GHSA-3374-7h99-xr85.