CVE-2020-12432 Cross-site scripting in n/a
Cross-site scripting in Collabora CODE WOPI API allows attackers to steal credentials via cookies or local storage after obtaining an access token.
- 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
- None listed
What is CVE-2020-12432?
CVE-2020-12432 is a medium-severity cross-site scripting vulnerability in n/a, published on 21 Jul 2020. 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
The WOPI API integration for Vereign Collabora CODE through 4.2.2 does not properly restrict delivery of JavaScript to a victim's browser, and lacks proper MIME type access control, which could lead to XSS that steals account credentials via cookies or local storage. The attacker must first obtain an API access token, which can be accomplished if the attacker is able to upload a .docx or .odt file. The associated API endpoints for exploitation are /wopi/files and /wopi/getAccessToken.
Weakness: CWE-79
Which versions are affected by CVE-2020-12432?
It affects 1 product.
Products include Collaboraoffice Collabora Online Development Edition.
How do I fix CVE-2020-12432?
No fix has been published for CVE-2020-12432 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-2020-12432 being exploited?
There is no known exploitation of CVE-2020-12432 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-w9v6-fcfc-9xr5.