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Fencer Intel
medium 5.4

CVE-2021-44649 json

Cross-site Scripting in django-cms

published 4y ago modified 4mo ago also GHSA-hx7c-qpfq-xcrp , PYSEC-2022-7 , EUVD-2022-0079

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

Django CMS 3.7.3 does not validate the plugin_type parameter while generating error messages for an invalid plugin type, resulting in a Cross Site Scripting (XSS) vulnerability. The vulnerability allows an attacker to execute arbitrary JavaScript code in the web browser of the affected user.

Patch / fix

  • pypi django-cms 3.4.7, 3.5.4, 3.6.1, 3.7.4
  • django-cms django_cms 3.4.7, 3.5.4, 3.6.1, 3.7.4

Is CVE-2021-44649 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sahildhar.github.io https://sahildhar.github.io/blogpost/Django-CMS-Reflected-XSS-Vulnerability/ referenced PoC, tagged "exploit" by a source, unverified

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
pypi django-cms
>=3.7.0, <3.7.4
>=3.6.0, <3.6.1
>=3.5.0, <3.5.4
>=3.4.0, <3.4.7
3.7.4
3.6.1
3.5.4
3.4.7

Classification

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

References

Sources

Fencer Intel 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.