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Fencer Vulns
high 7.5

CVE-2021-41608 json

A file disclosure vulnerability in the UploadedImageDisplay.aspx endpoint of SelectSurvey.NET before 5.052.000 allows a remote, unauthentic…

published 2022-01-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28622

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

A file disclosure vulnerability in the UploadedImageDisplay.aspx endpoint of SelectSurvey.NET before 5.052.000 allows a remote, unauthenticated attacker to retrieve survey user submitted data by modifying the value of the ID parameter in sequential order beginning from 1.

Patch / fix

  • classapps selectsurvey.net 5.052.000

Exploit prediction

1.97% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • optiv.com https://www.optiv.com/insights/source-zero/blog/classapps-inc-selectsurveynet-v50-vulnerabilities-disclosure 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:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key

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.