CVE-2026-4494 Details
Description
A vulnerability was identified in atjiu pybbs 6.0.0. This affects the function create of the file src/main/java/co/yiiu/pybbs/controller/api/TopicApiController.java. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
A stored cross-site scripting vulnerability has been identified in atjiu pybbs version 6.0.0. This issue arises in the TopicApiController's create function, where user-submitted HTML is not properly sanitized before being saved to the database. When the application is set to RICH content mode, this allows authenticated users to inject malicious JavaScript that executes when other users view the topic. The vulnerability can be exploited remotely, and a public proof-of-concept exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 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 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://fx4tqqfvdw4.feishu.cn/docx/EKVgdqWIzo70C0xB5jxcb4IZnre?from=from_copylink | [email protected] | ExploitPartial Content |
| https://vuldb.com/?ctiid.352020 | [email protected] | Content Wall |
| https://vuldb.com/?id.352020 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/?submit.773779 | [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 | All versions |
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] |
Volerion