CVE-2020-25788 Cross-site scripting in n/a

High 8.1 Published Updated

An attacker can inject malicious scripts via the imgproxy URL parameter in Tiny Tiny RSS, potentially leading to code execution or session hijacking.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-25788?

CVE-2020-25788 is a high-severity cross-site scripting vulnerability in n/a, published on 19 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. imgproxy in plugins/af_proxy_http/init.php mishandles $_REQUEST["url"] in an error message.

Weakness: CWE-829

Which versions are affected by CVE-2020-25788?

It affects 1 product.

Products include Tt-Rss Tiny Tiny Rss.

How do I fix CVE-2020-25788?

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-2020-25788 being exploited?

There is no known exploitation of CVE-2020-25788 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-25788, GHSA-c9pq-99jp-354g, UBUNTU-CVE-2020-25788.

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