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Fencer Vulns
medium 6.6

CVE-2021-4116 json

Cross-site Scripting (XSS) - Stored in yetiforcecompany/yetiforcecrm

published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also GHSA-fwh7-v4gf-xv7w , EUVD-2021-2515

cvss
6.6
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Patch / fix

  • yetiforcecompany yetiforcecompany/yetiforcecrm 6.4.0

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/7561bae7-9053-4dc8-aa59-b71acfb1712c referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.0 6.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H

Affected packages

ecosystem package affected fixed in
packagist yetiforce/yetiforce-crm
<=6.3.0
no fix listed

Affected products

  • yetiforcecompany yetiforcecompany/yetiforcecrm

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.