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Fencer Vulns
high 8.8

CVE-2023-49102 json

NZBGet 21.1 allows authenticated remote code execution because the unarchive programs (7za and unrar) preserve executable file permissions.

published 2023-11-22 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53111

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

NZBGet 21.1 allows authenticated remote code execution because the unarchive programs (7za and unrar) preserve executable file permissions. An attacker with the Control capability can execute a file by setting the value of SevenZipCommand or UnrarCmd. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Exploit prediction

1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sec.maride.cc https://sec.maride.cc/posts/nzbget/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.