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.

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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