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Fencer Intel
medium 4.3

CVE-2020-26506 json

An Authorization Bypass vulnerability in the Marmind web application with version 4.1.141.0 allows users with lower privileges to gain cont…

published 6y ago modified 4mo ago also EUVD-2020-19053

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

An Authorization Bypass vulnerability in the Marmind web application with version 4.1.141.0 allows users with lower privileges to gain control to files uploaded by administrative users. The accessed files were not visible by the low privileged users in the web GUI.

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Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • www2.deloitte.com https://www2.deloitte.com/de/de/pages/risk/articles/marmind-authorization-bypass.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Classification

Weakness
  • CWE-670 Always-Incorrect Control Flow Implementation
  • CWE-863 Incorrect Authorization

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.