What’s Vulnerable › Vulnerabilities

CVE-2020-21656

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-06 · updated 2026-06-17
• Weakness: CWE-79

Description

XYHCMS v3.6 contains a stored cross-site scripting (XSS) vulnerability in the component xyhai.php?s=/Link/index.

Affected products

• Xyhcms: 3.6

References

• https://github.com/gosea/xyhcms3/issues/2
• https://github.com/gosea/xyhcms3/issues/2

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