Vulnerability · Published Aug 28, 2026 · Assigned by mongodb
CVE-2026-76794MongoDB BI Connector Transition Readiness Report Improper HTML Encoding When Processing Database Metadata
Medium 4.6
In plain English
A medium-severity cross-site scripting in BI Connector Transition Readiness Report from MongoDB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 3.1)4.6Medium
Exploit odds (30 days)0.2%top 86.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
MongoSQL Transition Readiness Tool does not sufficiently encode database metadata before including it in generated HTML. A MongoDB user with write access can introduce crafted metadata that may cause script code to run when another user generates and opens the report, potentially exposing report contents or altering its display.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MongoDB | BI Connector Transition Readiness Report | 1.0.0 – before 1.1.3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N