What’s Vulnerable › Vulnerabilities

CVE-2021-36551

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-28 · updated 2026-06-17
• Weakness: CWE-79

Description

TikiWiki v21.4 was discovered to contain a cross-site scripting (XSS) vulnerability in the component tiki-calendar.php. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload under the Add Event module.

Affected products

• Tiki: 21.4

References

• https://github.com/r0ck3t1973/xss_payload/issues/7
• https://github.com/r0ck3t1973/xss_payload/issues/7

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