Administrator session theft via unchecked classification POST
Published Oct 4, 2021 · Updated Aug 4, 2024
Cross-site request forgery in Maccms 10 allows remote attackers to gain administrator privileges through an authenticated administrator's browser. The admin.php/admin/type/info.html endpoint accepts a cross-origin POST that creates a classification and stores attacker-controlled type_en content without a CSRF check. Exploitation requires a logged-in administrator to open a crafted page; the published proof of concept injects an event handler that reads the administrator cookie.
Summary
What happened
Cross-site request forgery in Maccms 10 allows remote attackers to gain administrator privileges through an authenticated administrator's browser. The admin.php/admin/type/info.html endpoint accepts a cross-origin POST that creates a classification and stores attacker-controlled type_en content without a CSRF check. Exploitation requires a logged-in administrator to open a crafted page; the published proof of concept injects an event handler that reads the administrator cookie.
The record
- CVE
- CVE-2020-21386
- Published
- Oct 4, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-352, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 4, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Cross-origin classification POST proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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