Subscriber-level CDN hijack via unchecked AJAX actions
Published Jun 7, 2023 · Updated Apr 8, 2026
Authorization bypass in FlyingWeb FlyingPress 3.9.6 and earlier allows remote authenticated users to alter plugin configuration. FlyingPress\Ajax::init registers nine AJAX actions without a capability check or security nonce, and save_config accepts an attacker-controlled CDN domain. Subscriber-level access is sufficient to rewrite front-end static-asset URLs to an attacker-controlled domain, enabling malicious JavaScript delivery.
Summary
What happened
Authorization bypass in FlyingWeb FlyingPress 3.9.6 and earlier allows remote authenticated users to alter plugin configuration. FlyingPress\Ajax::init registers nine AJAX actions without a capability check or security nonce, and save_config accepts an attacker-controlled CDN domain. Subscriber-level access is sufficient to rewrite front-end static-asset URLs to an attacker-controlled domain, enabling malicious JavaScript delivery.
The record
- CVE
- CVE-2022-4948
- Published
- Jun 7, 2023
- Updated
- Apr 8, 2026
- Vendor
- FlyingWeb
- Product
- FlyingPress
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 7, 2023CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=3.9.6
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- NinTechNet save_config CDN-domain demonstrationproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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