CVE-2019-1109 Other in Microsoft Office

Critical 9.1 Published Updated

An attacker can spoof web pages to read or write information in Office documents via JavaScript validation flaws.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1109?

CVE-2019-1109 is a critical vulnerability in Microsoft Office, published on 29 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A spoofing vulnerability exists when Microsoft Office Javascript does not check the validity of the web page making a request to Office documents.An attacker who successfully exploited this vulnerability could read or write information in Office documents.The security update addresses the vulnerability by correcting the way that Microsoft Office Javascript verifies trusted web pages., aka 'Microsoft Office Spoofing Vulnerability'.

Weakness: CWE-20

Which versions are affected by CVE-2019-1109?

It affects 2 products.

Products include Microsoft Office, Microsoft Office 365.

How do I fix CVE-2019-1109?

No fix has been published for CVE-2019-1109 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1109 being exploited?

There is no known exploitation of CVE-2019-1109 in the wild and no public exploit code.

All Microsoft Office vulnerabilities

Sources

Also known as GHSA-j5h9-qc5w-q39g.

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