CVE-2026-76798: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in MongoDB BI Connector Transition Readiness Report
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.
CVE-2026-76798: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in MongoDB BI Connector Transition Readiness Report
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.
CVSS v4.0
Score 6.9medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-19T19:18:12.867Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a91e412acd9273b4942e89b
Added to database: 08/28/2026, 19:40:02 UTC
Last updated: 08/29/2026, 00:02:34 UTC
Views: 6
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