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Fencer Vulns
medium 5.9

CVE-2021-23263 json

Transmission of Private Resources into a New Sphere ('Resource Leak') in Crafter Engine

published 2021-12-02 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10362

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Unauthenticated remote attackers can read textual content via FreeMarker including files /scripts/*, /templates/* and some of the files in /.git/* (non-binary).

Patch / fix

  • Crafter Software Crafter CMS 3.1.15

Exploit prediction

1.70% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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

Affected products

  • Crafter Software Crafter CMS

Classification

Weakness
  • CWE-402 Transmission of Private Resources into a New Sphere
  • CWE-668 Exposure of Resource to Wrong Sphere

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.