CVE-2017-7846 Cross-site scripting in Thunderbird
Attackers can execute JavaScript in Thunderbird when viewing RSS feeds as websites, potentially compromising user data or system integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-7846?
CVE-2017-7846 is a high-severity cross-site scripting vulnerability in Debian Debian Linux, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
It is possible to execute JavaScript in the parsed RSS feed when RSS feed is viewed as a website, e.g. via "View -> Feed article -> Website" or in the standard format of "View -> Feed article -> default format". This vulnerability affects Thunderbird < 52.5.2.
Weakness: CWE-74
Which versions are affected by CVE-2017-7846?
It affects 7 products.
Products include Debian Debian Linux, Mozilla Thunderbird, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus and 1 more.
How do I fix CVE-2017-7846?
Upgrade to a fixed version.
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-2017-7846 being exploited?
There is no known exploitation of CVE-2017-7846 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-7846, GHSA-2529-rwp4-75f6, UBUNTU-CVE-2017-7846.