RVM - Responsive Vector Maps <= 6.4.1 - Subscriber+ Arbitrary File Read
Strategic Overview
- Status
- Patched in 6.4.2
- Affected Plugin
- RVM – Responsive Vector Maps
- Affected Version
<= 6.4.1- CVSS
- 7.7High
- Weakness type
- CWE-863 · Incorrect Authorization
- CVE
CVE-2021-24947
At a glance
CVE-2021-24947 is a high-severity Incorrect Authorization vulnerability in the RVM WordPress plugin, affecting versions <= 6.4.1. It carries a CVSS score of 7.7 (reachable over the network; low attack complexity; high confidentiality impact). The issue is fixed in version 6.4.2; sites on affected versions should update now. Disclosed January 2022, reported by Krzysztof Zając.
Vulnerability Overview
The RVM WordPress plugin before 6.4.2 does not have proper authorisation, CSRF checks and validation of the rvm_upload_regions_file_path parameter in the rvm_import_regions AJAX action, allowing any authenticated user, such as subscriber, to read arbitrary files on the web server
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. A successful exploit has high impact on confidentiality.
CWE-863: Incorrect Authorization
Reaching this weakness in RVM <= 6.4.1 takes a caller who can reach the endpoint. Incorrect authorization means a permission check exists but evaluates the wrong thing, so it passes for callers it was meant to stop.
The action runs for users the code intended to exclude, with the same effect as having no check at all. For RVM the fix is 6.4.2: builds <= 6.4.1 are affected, anything from 6.4.2 onward is not.
Remediation
Update to version 6.4.2, 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: RVM 6.4.2 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
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