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Fencer Intel
medium 4.3

CVE-2022-30760 json

An Insecure Direct Object Reference (IDOR) issue in fn2Web in ihb eG FlexNow before 2.04.09.016 allows remote authenticated attackers to ob…

published 4y ago modified 4mo ago also EUVD-2022-52589

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

An Insecure Direct Object Reference (IDOR) issue in fn2Web in ihb eG FlexNow before 2.04.09.016 allows remote authenticated attackers to obtain sensitive student information (final grades, study courses, degrees) by changing the student ID parameter in the HTTP POST request to the FrontControllerSS endpoint.

Patch / fix

  • ihb-eg fn2web 2.04.09.016

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Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • homepage.ruhr-uni-bochum.de https://homepage.ruhr-uni-bochum.de/Christian.Krug-q97/CVE-2022-30760.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-639 Authorization Bypass Through User-Controlled Key

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.