CVE-2020-37284

MEDIUM 6.1

Sickbeard build-507 Reflected XSS via testNaming pattern Parameter

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	midgetspy
Product	sickbeard
Published	Oct 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

midgetspy / Sickbeard

0 ≤ build-507

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 The Shadowserver Foundation