Child Theme Creator by Orbisius <= 1.5.1 - Cross-Site Request Forgery to Arbitrary File Modification and Creation
Strategic Overview
- Status
- Patched in 1.5.2
- Affected Plugin
- Child Theme Creator by Orbisius
- Affected Version
< 1.5.2- CVSS
- 8.8High
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2020-28649
At a glance
CVE-2020-28649 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Child Theme Creator by Orbisius WordPress plugin, affecting versions < 1.5.2. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.5.2; sites on affected versions should update now. Disclosed October 2020, reported by Chloe Chamberland.
Vulnerability Overview
The orbisius-child-theme-creator plugin before 1.5.2 for WordPress allows CSRF via orbisius_ctc_theme_editor_manage_file that makes it possible for attackers to modify arbitrary files and create new files to achieve remote code execution.
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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Child Theme Creator by Orbisius < 1.5.2 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Child Theme Creator by Orbisius the fix is 1.5.2: builds < 1.5.2 are affected, anything from 1.5.2 onward is not.
Remediation
Update to version 1.5.2, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Child Theme Creator by Orbisius: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Child Theme Creator by Orbisius 1.5.2 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
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