Subscriber-level arbitrary post deletion via unchecked AJAX action
Published May 14, 2021 · Updated Aug 3, 2024
Incorrect authorization in Redirection for Contact Form 7 before 2.3.4 allows remote authenticated users to delete arbitrary WordPress posts. The delete_action_post AJAX handler passes attacker-supplied post_id values directly to wp_trash_post() without a capability check or nonce validation. Subscriber-level access reaches the handler, allowing deletion of any post and disrupting site content availability.
Summary
What happened
Incorrect authorization in Redirection for Contact Form 7 before 2.3.4 allows remote authenticated users to delete arbitrary WordPress posts. The delete_action_post AJAX handler passes attacker-supplied post_id values directly to wp_trash_post() without a capability check or nonce validation. Subscriber-level access reaches the handler, allowing deletion of any post and disrupting site content availability.
The record
- CVE
- CVE-2021-24281
- Published
- May 14, 2021
- Updated
- Aug 3, 2024
- Vendor
- Query Solutions Ltd.
- Product
- Redirection for Contact Form 7
- Classifications
- CWE-863, CWE-284, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 14, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record 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=2.3.4 <2.3.4
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.
Weakness, pattern, technique
Public exploit references
- WPScan authenticated arbitrary post deletion proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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