What’s Vulnerable › Vulnerabilities

CVE-2021-43742

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-13 · updated 2026-06-17
• Weakness: CWE-79

Description

CMSimple 5.4 is vulnerable to Cross Site Scripting (XSS) via the file upload feature.

Affected products

• CMSimple: 5.4

References

• https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities
• https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43742
• https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities
• https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-43742

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