NextScripts: Social Networks Auto-Poster <= 4.3.20: Cross-site scripting
NextScripts: Social Networks Auto-Poster <= 4.3.20 is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- NextScripts: Social Networks Auto-Poster <= 4.3.20
- Plugin slug
social-networks-auto-poster- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 01, 2021
This CVE was published Nov 01, 2021 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update NextScripts: Social Networks Auto-Poster <= 4.3.20 to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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'].
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD vector: AV:N/AC:M/Au:N/C:N/I:P/A:N