Site instability via nonce-free settings write
Published Dec 13, 2021 · Updated Aug 3, 2024
Cross-site request forgery in WP virtuoso Wp Limits 1.0 and earlier allows remote attackers to alter plugin settings through an administrator. The wp_define_limits administration handler accepts a crafted POST that writes memory, execution-time, and upload-limit values without verifying an anti-CSRF nonce. Exploitation requires a logged-in administrator to submit the attacker-controlled request; setting resource limits too low can destabilize the WordPress site.
Summary
What happened
Cross-site request forgery in WP virtuoso Wp Limits 1.0 and earlier allows remote attackers to alter plugin settings through an administrator. The wp_define_limits administration handler accepts a crafted POST that writes memory, execution-time, and upload-limit values without verifying an anti-CSRF nonce. Exploitation requires a logged-in administrator to submit the attacker-controlled request; setting resource limits too low can destabilize the WordPress site.
The record
- CVE
- CVE-2021-24818
- Published
- Dec 13, 2021
- Updated
- Aug 3, 2024
- Vendor
- WP virtuoso
- Product
- Wp Limits
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 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=1.0 <=1.0
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 crafted settings-form proof of conceptproof of concept · validated
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Technologies
Your stack
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Your stack
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