Patch Forecast
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CVE-2021-48011

Servor 1.0.0 through 4.0.2 contains a path traversal vulnerability that allows unauthenticated…

Risk score
59/100
CVSS
7.5 v3.1
Exploit chance (30 days)
0.6%
Published
12 Oct 2026

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What to know

What it is
Servor 1.0.0 through 4.0.2 contains a path traversal vulnerability that allows unauthenticated remote attackers to escape the served root by sending URL-encoded dot segments. Attackers can send %2e%2e/ sequences, which decodeURI() decodes before path.join() in serveStaticFile and serveDirectoryListing, to read arbitra…
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 7.5 high
  • Remotely exploitable without logging in

References

Original description

Servor 1.0.0 through 4.0.2 contains a path traversal vulnerability that allows unauthenticated remote attackers to escape the served root by sending URL-encoded dot segments. Attackers can send %2e%2e/ sequences, which decodeURI() decodes before path.join() in serveStaticFile and serveDirectoryListing, to read arbitrary files and list directories outside the root.

Last activity 12 Oct 2026. Patch Forecast updates every hour.