A reflected Cross-site scripting (XSS) vulnerability in Xinuo (formerly SCO) Openserver version 5 and 6 allows remote attackers to inject a…

published 2020-12-18 5y ago modified 2026-06-17 4mo ago also EUVD-2020-18180

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 9.0%; EPSS 9.0% chance of exploitation in 30 days, percentile 95%
public exploits: 1; Exploit-DB, plus a Nuclei check

A reflected Cross-site scripting (XSS) vulnerability in Xinuo (formerly SCO) Openserver version 5 and 6 allows remote attackers to inject arbitrary web script or HTML tag via the parameter 'section'.

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Timeline

2020-12-18 Published
2020-12-21 First public exploit (EDB-49300)

Exploit prediction

8.98% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-49300 SCO Openserver 5.0.7 - 'section' Reflected XSS webapps, 2020-12-21
Nuclei template Xinuo Openserver 5/6 - Cross-Site scripting nuclei detection template
github.com https://github.com/Ramikan/Vulnerabilities/blob/master/SCO%20Openserver%20XSS%20%26%20HTML%20Injection%20vulnerability referenced PoC, tagged "exploit" by a source, unverified
packetstormsecurity.com http://packetstormsecurity.com/files/160634/SCO-Openserver-5.0.7-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /Ramikan/Vulnerabilities/blob/master/SCO%20Openserver%20XSS%20%26%20HTML%20Injection%20vulnerability
exploit, third-party-advisory
packetstormsecurity.com /files/160634/SCO-Openserver-5.0.7-Cross-Site-Scripting.html
exploit, third-party-advisory

Sources

CVE List CVE-2020-25495
NVD CVE-2020-25495

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