CVE-2026-76794 MongoDB BI Connector Transition Readiness Report Improper HTML Encoding When Processing Database Metadata
An attacker with write access can inject scripts into database metadata, leading to XSS when users view the transition readiness report.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-76794?
CVE-2026-76794 is a medium-severity cross-site scripting vulnerability in MongoDB BI Connector Transition Readiness Report, published on 28 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-76794?
It affects 1 product.
Products include Mongodb Mongosql Transition Readiness Tool.
How do I fix CVE-2026-76794?
No fix has been published for CVE-2026-76794 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-76794 being exploited?
There is no known exploitation of CVE-2026-76794 in the wild and no public exploit code.
Other vulnerabilities in MongoDB BI Connector Transition Readiness Report
Sources
Also known as GHSA-xpfg-hqpq-mf5g.