Admin profile modification via forged cross-site POST
Published Jan 15, 2026 · Updated Jan 15, 2026
Cross-site request forgery in b2evolution 7.2.2 allows remote attackers to modify an administrator's profile through a crafted webpage. The evoadm.php user-profile update endpoint accepts a forged POST with profile fields and a user_ID, treating the victim's authenticated browser request as authorized. The attacker needs no account, but an authenticated administrator must load the attacker-controlled page; successful exploitation changes that administrator's account details.
Summary
What happened
Cross-site request forgery in b2evolution 7.2.2 allows remote attackers to modify an administrator's profile through a crafted webpage. The evoadm.php user-profile update endpoint accepts a forged POST with profile fields and a user_ID, treating the victim's authenticated browser request as authorized. The attacker needs no account, but an authenticated administrator must load the attacker-controlled page; successful exploitation changes that administrator's account details.
The record
- CVE
- CVE-2021-47800
- Published
- Jan 15, 2026
- Updated
- Jan 15, 2026
- Vendor
- b2evolution
- Product
- b2evolution
- Classifications
- CWE-352
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 15, 2026CVE publishedPublication date reported by the CVE source.
- Jan 15, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.2.2
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.
Weakness, pattern, technique
Public exploit references
- b2evolution 7.2.2 edit account details CSRF proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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