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GHSA-6h8x-73fx-q2h9 CVE-2016-4043 PYSEC-2017-57

Chameleon in Plone allows Authentication Bypass

Medium PyPI
Severity
0.0 / 10
Medium · CVSS 4.0
Exploit chance (EPSS)
1.01%
Chance of exploitation in the next 30 days. Higher than 63.28% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-287 Improper Authentication
Fix
5.1a2
Upgrade plone to this version or later

Description

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.

Affected versions

PyPI

PackageVulnerableFixed in
plone
>= 5.0rc1, <= 5.0.4
No fix yet
plone 1 listed versions No fix yet
plone
>= 5.0rc1, < 5.1a2
5.1a2

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

plone PyPI → 5.1a2

pip
pip install --upgrade "plone>=5.1a2"
poetry
poetry add "plone>=5.1a2"
uv
uv add "plone>=5.1a2"

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
High
User interaction
None
Confidentiality (vulnerable system)
None
Integrity (vulnerable system)
High
Availability (vulnerable system)
None
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.0 4.9

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Weakness

CWE-287: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

How to prevent it
  • Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-xg5p-8wg5-rhxm
Phone information disclosure vulnerability
High Also affects plone
GHSA-5xfx-55x4-j223
Cross-Frame Scripting vulnerability has been found on Plone CMS
High Also affects plone
GHSA-47p5-p3jw-w78w
Server-Side Request Forgery in Plone CMS
High Also affects plone
GHSA-cvwc-g7fw-7xrj
Plone XSS Vulnerability
Medium Also affects plone
GHSA-pwgm-jvqv-6v8p
Plone anonymous access to sub-objects in CMFEditions where KwAsAttributes classes were publishable
High Also affects plone
GHSA-46f9-f8jm-mw2x
Plone Cross-site Scripting vulnerability in the LiveSearch module
Medium Also affects plone
GHSA-hjp5-hv33-q58g
Plone credentials stored in session cookie
Medium Also affects plone
GHSA-593c-j348-f3gv
Plone Improper Session Management
High Also affects plone
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