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Fencer Intel
high 7.5

CVE-2020-12837 json

ismartgate PRO 1.5.9 is vulnerable to malicious file uploads via the form for uploading images to garage doors.

published 6y ago modified 4mo ago also EUVD-2020-5119

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

ismartgate PRO 1.5.9 is vulnerable to malicious file uploads via the form for uploading images to garage doors. The magic bytes of PNG must be used.

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Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • kth.diva-portal.org https://kth.diva-portal.org/smash/get/diva2:1464458/FULLTEXT01.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Intel 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.