Plugin data deletion via nonce-free uninstall action
Published Sep 20, 2021 · Updated Aug 3, 2024
Cross-site request forgery in Michael Nelson's Print My Blog before 3.4.2 allows remote attackers to deactivate it and delete its saved data. Before the fix, the administrative Delete All Data link and uninstall request handler performed destructive cleanup without verifying a WordPress nonce. An administrator must be logged in and open the malicious link; the result is plugin deactivation and deletion of that plugin's saved data.
Summary
What happened
Cross-site request forgery in Michael Nelson's Print My Blog before 3.4.2 allows remote attackers to deactivate it and delete its saved data. Before the fix, the administrative Delete All Data link and uninstall request handler performed destructive cleanup without verifying a WordPress nonce. An administrator must be logged in and open the malicious link; the result is plugin deactivation and deletion of that plugin's saved data.
The record
- CVE
- CVE-2021-24636
- Published
- Sep 20, 2021
- Updated
- Aug 3, 2024
- Vendor
- Michael Nelson
- Product
- Print My Blog
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 20, 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=3.4.2 <3.4.2
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
- WPScan Print My Blog CSRF exploit recordproof of concept · unverified
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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