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Fencer Vulns
medium 5.4

CVE-2021-28114 json

Cross-site Scripting in Froala WYSIWYG Editor

published 2021-07-16 5 y ago modified 2026-06-17 4 mo ago also GHSA-rr6v-h7m8-wc9f , EUVD-2021-1491

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
52.0%
EPSS 52.0% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Froala WYSIWYG Editor 3.2.6-1 is affected by XSS due to a namespace confusion during parsing.

Patch / fix

  • packagist froala/wysiwyg-editor 3.2.7
  • froala froala_editor 3.2.7

Exploit prediction

52.04% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
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 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist froala/wysiwyg-editor
<3.2.7
3.2.7

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.