CVE-2016-4043
Chameleon in Plone allows Authentication Bypass
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2016-4043- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2016-4043- Updated
- 2026-11-02
EUVDEUVD-2017-0090 No score
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.
- Record
EUVD-2017-0090- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6h8x-73fx-q2h9
Chameleon in Plone allows Authentication Bypass
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.
- Record
GHSA-6h8x-73fx-q2h9- CVSS 4.0
- 6.9 Medium
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 - CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2016-4043- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-6h8x-73fx-q2h9
Chameleon in Plone allows Authentication Bypass
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.
- Record
GHSA-6h8x-73fx-q2h9- CVSS 4.0
- 6.9 Medium
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 - CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSVPYSEC-2017-57 No score
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.
- Record
PYSEC-2017-57- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
plonePyPI |
5.0rc1 to 5.0.4 | None known |
plonePyPI |
5.1a1 to 5.1a1 | None known |
plonePyPI |
5.0rc1 to 5.0.4, plus listed versions 5.05.0.15.0.25.0.35.0rc25.0rc3 |
None known |
plonePyPI |
Listed versions 5.1a1 |
None known |
plonePyPI |
5.0rc1 up to 5.1a2, plus listed versions 5.05.0.15.0.105.0.25.0.3 Show 9 moreShow less5.0.45.0.55.0.65.0.75.0.85.0.95.0rc25.0rc35.1a1 |
5.1a2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-4043 is a medium vulnerability (CVSS 4.9) in Plone, published February 24, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in plone 5.1a2.