CVE-2021-44082 Cross-site scripting in n/a
An unauthenticated attacker can exploit XSS to steal CSRF tokens and upload a webshell, leading to remote code execution on the Textpattern CMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-44082?
CVE-2021-44082 is a high-severity cross-site scripting vulnerability in n/a, published on 29 Mar 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshell. To do so they must first steal the CSRF token before submitting a file upload request.
Weakness: CWE-79
Which versions are affected by CVE-2021-44082?
It affects 1 product.
Products include Textpattern Textpattern.
How do I fix CVE-2021-44082?
No fix has been published for CVE-2021-44082 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-2021-44082 being exploited?
There is no known exploitation of CVE-2021-44082 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-44jp-4j2r-4c78.