What’s Vulnerable › Vulnerabilities

CVE-2021-47835: Freeter 1.2.1 - Persistent Cross-Site Scripting

• Severity: high (CVSS 7.2 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: none known
• Published: 2026-01-16 · updated 2026-06-17
• Weakness: CWE-79

Description

Freeter 1.2.1 contains a persistent cross-site scripting vulnerability that allows attackers to store malicious payloads in custom widget titles and files. Attackers can craft malicious files with embedded scripts that execute when victims interact with the application, potentially enabling remote code execution.

Affected products

• Freeter: 1.2.1

References

• https://freeter.io/
• https://imgur.com/a/iBuKWm4
• https://www.exploit-db.com/exploits/49833
• https://www.vulncheck.com/advisories/freeter-persistent-cross-site-scripting
• https://www.vulncheck.com/advisories/freeter-persistent-cross-site-scripting

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