CVE-2020-37284 Sickbeard build-507 Reflected XSS via testNaming pattern Parameter

Medium 5.1 Published 22 Oct 2026 Updated 28 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2020-37284?

CVE-2020-37284 is a medium-severity vulnerability in midgetspy Sickbeard, published on 22 Oct 2026.

Official description

Sickbeard through build-507 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts through the pattern parameter of /config/postProcessing/testNaming. Attackers can craft GET requests with malicious SVG onload payloads that the testNaming handler returns unescaped, executing JavaScript in victims' browsers. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.

Weakness: CWE-79

Which versions are affected by CVE-2020-37284?

How do I fix CVE-2020-37284?

No fix has been published for CVE-2020-37284 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-37284 being exploited?

There is no known exploitation of CVE-2020-37284 in the wild and no public exploit code.

Sources

Also known as GHSA-hcqw-c4qc-rwqr.