CVE-2026-4495
Received Received - Intake

Remote Cross-Site Scripting in atjiu pybbs CommentApiController#create

Publication date: 2026-03-20

Last updated on: 2026-04-29

Assigner: VulDB

Description
A security flaw has been discovered in atjiu pybbs 6.0.0. This impacts the function create of the file src/main/java/co/yiiu/pybbs/controller/api/CommentApiController.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

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Meta Information

Published
2026-03-20
Last Modified
2026-04-29
Generated
2026-07-06
AI Q&A
2026-03-20
EPSS Evaluated
2026-07-05
NVD
CVE-2026-4495
EUVD
EUVD-2026-13758

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
atjiu pybbs 6.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This vulnerability is a security flaw found in atjiu pybbs version 6.0.0, specifically in the create function of the CommentApiController.java file. It allows an attacker to perform a cross-site scripting (XSS) attack by manipulating input in a way that the application does not properly sanitize. This flaw can be exploited remotely.

Impact Analysis

The vulnerability can allow attackers to execute malicious scripts in the context of the affected application. This can lead to unauthorized actions such as stealing user session data, defacing web content, or redirecting users to malicious sites. Since the exploit is publicly available, the risk of attacks is increased.

Compliance Impact

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Detection Guidance

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