CVE-2026-76798— MongoSQL Transition Readiness Tool Improper Output Encoding in Generated HTML Reports
Quick assessment
Affected
MongoDB BI Connector Transition Readiness Report
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
MongoDB BI Connector Transition Readiness Report是美国MongoDB公司的一份数据库系统迁移就绪评估报告。 MongoDB BI Connector Transition Readiness Report 1.0.0版本至1.1.3之前版本存在跨站脚本漏洞，该漏洞源于将BI Connector日志文件中的查询文本和用户名写入生成的HTML报告时未针对输出上下文进行编码，可能导致跨站脚本攻击，泄露其他用户的日志查询文本和用户名或向操作员呈现误导性内容。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MongoDB | BI Connector Transition Readiness Report | 1.0.0< 1.1.3 |
affected |
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I. Basic Information for CVE-2026-76798
Vulnerability Information
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Vulnerability Title
MongoSQL Transition Readiness Tool Improper Output Encoding in Generated HTML Reports
Source: CVE Program / CVE List V5
Vulnerability Description
The MongoSQL Transition Readiness Tool writes query text and user names read from BI Connector log files into its generated HTML report without encoding them for that output context. A user able to issue queries through the BI Connector can influence log content so that markup supplied in a query is interpreted by the browser when an operator later generates and opens the report, which may disclose other users' logged query text and user names to an external party or present misleading content to the operator. Generating a report over logs containing the affected entries and opening that report in a browser is required.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB BI Connector Transition Readiness Report 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB BI Connector Transition Readiness Report是美国MongoDB公司的一份数据库系统迁移就绪评估报告。 MongoDB BI Connector Transition Readiness Report 1.0.0版本至1.1.3之前版本存在跨站脚本漏洞，该漏洞源于将BI Connector日志文件中的查询文本和用户名写入生成的HTML报告时未针对输出上下文进行编码，可能导致跨站脚本攻击，泄露其他用户的日志查询文本和用户名或向操作员呈现误导性内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB | BI Connector Transition Readiness Report | 1.0.0 ~ 1.1.3 | - |
|
II. Public POCs for CVE-2026-76798
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-76798 (1)
Same Patch Batch · MongoDB · 2026-08-28 · 11 CVEs total
| CVE-2026-81532 | 8.8 HIGH | BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corrupt |
| CVE-2026-77586 | 8.0 HIGH | MongoDB Connector for BI Unescaped Object Names in Generated SHOW CREATE Output |
| CVE-2026-81490 | 7.7 HIGH | MongoDB Connector for BI Improper Error Handling During Schema Sampling May Cause Loss of |
| CVE-2026-81517 | 7.5 HIGH | MongoDB Connector for BI Improper Error Handling of Log Write Failures May Cause Loss of S |
| CVE-2026-81518 | 7.5 HIGH | BI Connector Optional Client Certificate Verification Allows Unauthenticated Connections |
| CVE-2026-81520 | 7.5 HIGH | MongoDB Connector for BI Unbounded Authentication Negotiation Leading to Connection Exhaus |
| CVE-2026-81533 | 7.1 HIGH | MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values |
| CVE-2026-76797 | 6.3 MEDIUM | MongoSQL Transition Readiness Tool Improper Neutralization of Formula Elements in Generate |
| CVE-2026-77184 | 5.2 MEDIUM | MongoDB Connector for BI Incomplete Escaping of Stored Metadata in Generated SHOW CREATE O |
| CVE-2026-76794 | 4.6 MEDIUM | MongoDB BI Connector Transition Readiness Report Improper HTML Encoding When Processing Da |
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V. Comments for CVE-2026-76798
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