NS WooCommerce Watermark <= 2.11.3 - Abuse of Functionality
Strategic Overview
- Status
- Patched in 3.0.0
- Affected Plugin
- NS Watermark For WooCommerce
- Affected Version
<= 2.11.3- CVSS
- 7.5High
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2022-0989
At a glance
CVE-2022-0989 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the NS Watermark For WooCommerce WordPress plugin, affecting versions <= 2.11.3. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires no authentication. The issue is fixed in version 3.0.0; sites on affected versions should update now. Disclosed March 2022, reported by Felipe Restrepo Rodriguez (pfelilpe).
Vulnerability Overview
An unprivileged user could use the functionality of the NS WooCommerce Watermark WordPress plugin through 2.11.3 to load images that hide malware for example from passing malicious domains to hide their trace, by making them pass through the vulnerable domain.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on integrity.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in NS Watermark For WooCommerce <= 2.11.3 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For NS Watermark For WooCommerce the fix is 3.0.0: builds <= 2.11.3 are affected, anything from 3.0.0 onward is not.
Remediation
Update to version 3.0.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to NS Watermark For WooCommerce: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: NS Watermark For WooCommerce 3.0.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C