Strategic Overview
- Status
- Patched in 1.6.5.584
- Affected Plugin
- Surfer – WordPress Plugin
- Affected Version
<= 1.6.4.574- CVSS
- 5.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2025-58603
At a glance
CVE-2025-58603 is a medium-severity Missing Authorization vulnerability in the Surfer WordPress plugin, affecting versions <= 1.6.4.574. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.6.5.584; sites on affected versions should update now. Disclosed September 2025, reported by Hiro.
Vulnerability Overview
The Surfer – WordPress Plugin plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 1.6.4.574. This makes it possible for unauthenticated attackers to perform an unauthorized action.
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.
CWE-862: Missing Authorization
Reaching this weakness in Surfer <= 1.6.4.574 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Surfer the fix is 1.6.5.584: builds <= 1.6.4.574 are affected, anything from 1.6.5.584 onward is not.
Remediation
Update to version 1.6.5.584, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Surfer 1.6.5.584 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Surfer – WordPress Plugin
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