Cross Site Scripting in atjiu pybbs from Unknown Function
CVE-2025-8555

5.1MEDIUM

Key Information:

Vendor

Atjiu

Status
Pybbs
Vendor
CVE Published:
5 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8555?

A Cross Site Scripting vulnerability exists in atjiu pybbs, affecting versions up to 6.0.0. The flaw arises from an unvalidated input in the file /search, specifically in the keyword argument. This vulnerability allows attackers to inject malicious scripts that can be executed in the context of an unsuspecting user's browser, potentially leading to data theft, session hijacking, or other malicious activities. The vulnerability has been made public, and a patch is available, identified by commit hash 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22, which is highly recommended for users of the affected product.

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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-2025-8555 - Proof of Concept

References

https://vuldb.com/?id.318684
vdb-entrytechnical-description
https://vuldb.com/?ctiid.318684
signaturepermissions-required
https://vuldb.com/?submit.622199
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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