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Fencer Intel
medium 4.9

CVE-2016-4043 json

Chameleon in Plone allows Authentication Bypass

published 2017-02-24 9 y ago modified 2026-06-17 4 mo ago also GHSA-6h8x-73fx-q2h9 , PYSEC-2017-57 , EUVD-2017-0090

cvss
4.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to create or edit templates.

Patch / fix

  • pypi plone 5.1a2

Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 4.9 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.0 4.9 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi plone
>=5.0rc1, <=5.0.4
1 listed version
>=5.0rc1, <5.1a2
5.1a2

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
  • CWE-287 Improper Authentication

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.