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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

MongoDBCVE-2026-76798

MongoDB BI Connector Transition Readiness Report: cross-site scripting

MongoDB

CVE-2026-76798 · Published Aug 28, 2026 · updated Sep 17, 2026

Medium6.9
Fix: upgrade to 1.1.3 or later
MongoDB advisory

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.

Affected versions

PackageAffectedFixed in
BI Connector Transition Readiness Report
Product
>= 1.0.0, < 1.1.31.1.3
Details and references
CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-79

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