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Fencer Vulns
medium 6.1

CVE-2021-45895 json

Cross-site Scripting in Netgen Tags Bundle

published 2021-12-27 4 y ago modified 2026-06-17 4 mo ago also GHSA-xvvv-wj7j-r9jm , EUVD-2022-0749

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Netgen Tags Bundle 3.4.x before 3.4.11 and 4.0.x before 4.0.15 allows XSS in the Tags Admin interface.

Patch / fix

  • packagist netgen/tagsbundle 3.4.11, 4.0.15
  • netgen tags_bundle 3.4.11, 4.0.15

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist netgen/tagsbundle
>=3.4.0, <3.4.11
>=4.0.0, <4.0.15
3.4.11
4.0.15

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.