CVE-2021-38356 NextScripts: Social Networks Auto-Poster <= 4.3.20 Reflected Cross-Site Scripting
Reflected XSS in NextScripts Social Networks Auto-Poster allows attackers to inject malicious scripts via the page parameter.
- 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-2021-38356?
CVE-2021-38356 is a medium-severity cross-site scripting vulnerability in NextScripts: Social Networks Auto-Poster, published on 1 Nov 2021. 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
The NextScripts: Social Networks Auto-Poster <= 4.3.20 WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $_REQUEST['page'] parameter which is echoed out on inc/nxs_class_snap.php by supplying the appropriate value 'nxssnap-post' to load the page in $_GET['page'] along with malicious JavaScript in $_POST['page'].
Weakness: CWE-79
Which versions are affected by CVE-2021-38356?
It affects 1 product.
Products include Nextscripts Social Networks Auto Poster.
How do I fix CVE-2021-38356?
No fix has been published for CVE-2021-38356 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-2021-38356 being exploited?
There is no known exploitation of CVE-2021-38356 in the wild and no public exploit code.
Other vulnerabilities in NextScripts: Social Networks Auto-Poster
- CVE-2024-2088 NextScripts: Social Networks Auto-Poster <= 4.4.3 - Authenticated(Subscriber+) Sensitive Information Exposure
- CVE-2024-37275 WordPress NextScripts plugin <= 4.4.7 - Cross Site Scripting (XSS) vulnerability
- CVE-2023-49183 WordPress NextScripts Plugin <= 4.4.2 is vulnerable to Cross Site Scripting (XSS)
- CVE-2021-25072 NextScripts: Social Networks Auto-Poster < 4.3.25 - Arbitrary Post Deletion via CSRF
- CVE-2024-1762 NextScripts: Social Networks Auto-Poster <= 4.4.3 - Unauthenticated Stored Cross-Site Scripting via User Agent
Sources
Also known as GHSA-c4v2-74rr-g59c.