CVE-2019-15782 Cross-Site Scripting in webtorrent
An attacker can execute arbitrary scripts in the victim's browser via malicious titles or filenames in the WebTorrent HTTP server.
- 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-2019-15782?
CVE-2019-15782 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Aug 2019. 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
WebTorrent before 0.107.6 allows XSS in the HTTP server via a title or file name.
Weakness: CWE-79
Which versions are affected by CVE-2019-15782?
2 open source packages ship an affected version, including webtorrent. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
webtorrent npm | All versions | 0.107.6 |
webtorrent npm | All versions | 0.107.6 |
Products include Webtorrent Webtorrent.
How do I fix CVE-2019-15782?
Upgrade webtorrent to 0.107.6 or later.
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-2019-15782 being exploited?
There is no known exploitation of CVE-2019-15782 in the wild and no public exploit code.
Sources
Also known as GHSA-gjh4-fcv3-whpq.