CVE-2021-26549

MEDIUM 5.4CVE-2021-26549 · Published 09/02/2021 · updated 17/06/2026

In short

CVE-2021-26549 is a MEDIUM (CVSS 5.4) vulnerability affecting smartfoxserver (smartfoxserver).
Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 71.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
smartfoxserver smartfoxserver	`= 2.17.0`	No fix yet

Description

An XSS issue was discovered in SmartFoxServer 2.17.0. Input passed to the AdminTool console is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML code in a user's browser session in context of an affected site.

References

packetstormsecurity.com/files/161335/SmartFoxServer-2X-2.17.0-God-Mode-Console-WebSocket-Cross-Site-Scripting.html · Exploit
smartfoxserver.com · Product
zeroscience.mk/en/vulnerabilities · Exploit
zeroscience.mk/en/vulnerabilities/ZSL-2021-5626.php · Exploit

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