CVE-2020-25789 Cross-site scripting in n/a
Attackers can execute arbitrary JavaScript via crafted SVG documents in cached URLs, potentially compromising user sessions in Tiny Tiny RSS.
- 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-2020-25789?
CVE-2020-25789 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Sep 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
An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. The cached_url feature mishandles JavaScript inside an SVG document.
Weakness: CWE-79
Which versions are affected by CVE-2020-25789?
It affects 1 product.
Products include Tt-Rss Tiny Tiny Rss.
How do I fix CVE-2020-25789?
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-2020-25789 being exploited?
There is no known exploitation of CVE-2020-25789 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2020-25789, GHSA-63f3-68q8-wr22, UBUNTU-CVE-2020-25789.