Stored script injection via nonce-free settings update
Published May 5, 2026 · Updated May 5, 2026
Cross-site request forgery in the settings page of Kazuo Dobashi addfreespace 0.1.3 and earlier allows remote attackers to store scripts. The settings update handler accepts state-changing administrator requests without validating a WordPress nonce and stores attacker-supplied markup in plugin options. Exploitation requires an authenticated site administrator to visit an attacker-controlled link or page; the browser then submits the forged request, changing settings and causing the stored script to execute in the site context.
Summary
What happened
Cross-site request forgery in the settings page of Kazuo Dobashi addfreespace 0.1.3 and earlier allows remote attackers to store scripts. The settings update handler accepts state-changing administrator requests without validating a WordPress nonce and stores attacker-supplied markup in plugin options. Exploitation requires an authenticated site administrator to visit an attacker-controlled link or page; the browser then submits the forged request, changing settings and causing the stored script to execute in the site context.
The record
- CVE
- CVE-2026-6701
- Published
- May 5, 2026
- Updated
- May 5, 2026
- Vendor
- Kazuo Dobashi
- Product
- addfreespace
- Classifications
- CWE-352
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 5, 2026CVE publishedPublication date reported by the CVE source.
- May 5, 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?
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- Affected versionversion=0 <=0.1.3
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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Your stack
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