Cross-Site Request Forgery in b2evolution by b2evolution
CVE-2021-47800

6.9MEDIUM

Key Information:

Vendor

B2evolution

Status
B2evolution
Vendor
CVE Published:
15 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47800?

b2evolution version 7.2.2 is susceptible to a cross-site request forgery vulnerability, which enables attackers to alter administrator account details without the need for authentication. By creating a malicious HTML form and enticing users to load a specifically designed webpage, attackers can submit unauthorized changes to user profiles, thereby compromising the integrity and security of the application.

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Affected Version(s)

b2evolution 7.2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47800 - Proof of Concept

References

https://www.exploit-db.com/exploits/50081
exploit
https://b2evolution.net/
product
https://b2evolution.net/downloads/
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alperen Ergel (@alpernae)
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