Medium severity6.1NVD Advisory· Published Oct 22, 2026

CVE-2020-37284

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Sickbeard/Sickbeardllm-fuzzy
Range: <=build-507

Patches

Vulnerability mechanics

References

github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/sick-beard-xss.yamlnvd
www.vulncheck.com/advisories/sickbeard-build-507-reflected-xss-via-testnaming-pattern-parameternvd

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cvss	0.397
epss	0.000
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ransomware	0.000