What’s Vulnerable › Vulnerabilities

CVE-2026-64619: FileCodeBox < 2.4 Anti-bruteforce Rate Limit Bypass via Spoofed Headers

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-10-24
• Weakness: CWE-348

Description

FileCodeBox before 2.4 contains a rate-limit bypass vulnerability in the IPRateLimit class that allows unauthenticated attackers to circumvent request throttling by supplying attacker-controlled X-Real-IP and X-Forwarded-For headers without verification of trusted reverse proxy origin. Attackers can supply unique spoofed IP values on each request to enumerate all possible share codes and retrieve other users' files without authentication.

Affected products

• vastsa FileCodeBox: before 2.4 — fixed in 2.4

How to fix

Upgrade to a fixed version: vastsa FileCodeBox 2.4. Check the vendor advisory for mitigations.

References

• https://github.com/vastsa/FileCodeBox/commit/1b6d8e7277d3cfa34dc7a85803731d927b2147da
• https://github.com/vastsa/FileCodeBox/issues/479
• https://github.com/vastsa/FileCodeBox/releases/tag/V2.4
• https://www.vulncheck.com/advisories/filecodebox-anti-bruteforce-rate-limit-bypass-via-spoofed-headers

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