Cross Site Scripting Vulnerability in atjiu pybbs by atjiu
CVE-2025-8551

5.1MEDIUM

Key Information:

Vendor

Atjiu

Status
Pybbs
Vendor
CVE Published:
5 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8551?

A Cross Site Scripting vulnerability exists in atjiu pybbs versions up to 6.0.0, specifically in the functionality of the /admin/comment/list file. By manipulating the 'Username' argument, an attacker can inject malicious scripts, which may be executed in the context of a user's browser. This allows for the potential theft of sensitive data or session information. The issue has been publicly disclosed, and it is essential to apply the patch identified as 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22 to mitigate this risk.

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Deploy the Patch

Affected Version(s)

pybbs 6.0

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-2025-8551 - Proof of Concept

References

https://vuldb.com/?id.318680
vdb-entrytechnical-description
https://vuldb.com/?ctiid.318680
signaturepermissions-required
https://vuldb.com/?submit.622195
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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

ZAST.AI (VulDB User)
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