CVE-2026-4495 Details
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.
A stored cross-site scripting vulnerability has been identified in atjiu pybbs version 6.0.0. This issue arises in the 'create' function of the 'CommentApiController.java' file, when the application is set to 'RICH' content mode. In this mode, user-submitted HTML is directly saved to the database and displayed on the frontend without proper sanitization. This allows authenticated attackers to inject malicious JavaScript that executes when other users view the comment.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 20, 2026CISA-ADP
Assessed Mar 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://fx4tqqfvdw4.feishu.cn/docx/PN3YdPBpsowyU1xTV1VcVTm9nzg?from=from_copylink | [email protected] | ExploitTechnical Description |
| https://vuldb.com/?ctiid.352021 | [email protected] | Content Wall |
| https://vuldb.com/?id.352021 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/?submit.773780 | [email protected] | Issue TrackingTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| atjiu pybbs | 6.0.0 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 20, 2026 | New CVE Received | [email protected] |