Pro Bulk Watermark Plugin for WordPress <= 2.0 - Authenticated (Subscriber+) Path Traversal
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Pro Bulk Watermark Plugin for WordPress
- Affected Version
<= 2.0- CVSS
- 4.3Medium
- Weakness type
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CVE
CVE-2025-4956
At a glance
CVE-2025-4956 is a medium-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Pro Bulk Watermark Plugin for WordPress WordPress plugin, affecting versions <= 2.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed August 2025, reported by ch4r0n.
Vulnerability Overview
The pro-watermark theme for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform actions on files outside of the originally intended directory.
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 interaction from a victim user.
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Reaching this weakness in Pro Bulk Watermark Plugin for WordPress <= 2.0 takes an account at Subscriber level or above. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.
Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. No fixed build of this plugin is recorded for Pro Bulk Watermark Plugin for WordPress yet, so installs running <= 2.0 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Alerts
External References
Related records
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