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Fencer Vulns
medium 5.3

CVE-2021-30048 json

Directory Traversal in the fileDownload function in com/java2nb/common/controller/FileController.java in Novel-plus (小说精品屋-plus) 3.5.1 allo…

published 2021-04-29 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16992

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Directory Traversal in the fileDownload function in com/java2nb/common/controller/FileController.java in Novel-plus (小说精品屋-plus) 3.5.1 allows attackers to read arbitrary files via the filePath parameter.

Exploit prediction

2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • exploit-db.com https://www.exploit-db.com/exploits/49724 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/201206030/novel-plus/issues/39 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.