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Fencer Vulns
medium 6.1

CVE-2020-25495 json

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 5 y ago modified 2026-06-17 4 mo 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

Summary

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'.

Timeline

  1. Published
  2. 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, 2026-11-08).

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

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.