Strategic Overview
- Status
- Patched in 4.5.4
- Affected Plugin
- OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy.
- Affected Version
<= 4.5.3- CVSS
- 8.1High
- Weakness type
- CWE-284 · Improper Access Control
- CVE
CVE-2021-24639
At a glance
CVE-2021-24639 is a high-severity Improper Access Control vulnerability in the OMGF WordPress plugin, affecting versions <= 4.5.3. It carries a CVSS score of 8.1 (reachable over the network; low attack complexity; high integrity, availability impact). The issue is fixed in version 4.5.4; sites on affected versions should update now. Disclosed August 2021, reported by apple502j.
Vulnerability Overview
The OMGF WordPress plugin before 4.5.4 does not enforce path validation, authorisation and CSRF checks in the omgf_ajax_empty_dir AJAX action, which allows any authenticated users to delete arbitrary files or folders on the 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 integrity, availability.
CWE-284: Improper Access Control
Reaching this weakness in OMGF <= 4.5.3 takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.
Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For OMGF the fix is 4.5.4: builds <= 4.5.3 are affected, anything from 4.5.4 onward is not.
Remediation
Update to version 4.5.4, 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: OMGF 4.5.4 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy.
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