CVE-2012-5493

Plone Sandbox Bypass

8.5 HighFix available

CVE-2012-5493 is a high vulnerability (CVSS 8.5) in Plone, published September 30, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.71%, the 77th percentile. Fixed in plone 4.2.3.

What does this mean?

Severity: 8.5 HighCVSS 2.0, NVD
Exploit chance: 1.71%EPSS, 77th percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: 4.2.3plone +4 more

Description

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Exploit likelihood

1.71%Up 0.6 points since Feb 4, 2022

Affected products

plone

Affected packages

Affected packages
Package	Affected	Fixed
`plone` PyPI	before 4.2.3	4.2.3
`plone` PyPI	4.3a0 up to 4.3b1	4.3b1
`plone` PyPI	before 4.2.3, plus listed versions 3.23.2.13.2.23.2.33.2a1 Show 45 moreShow less 3.2rc13.33.3.13.3.23.3.33.3.43.3.53.3.63.3b13.3rc13.3rc23.3rc33.3rc43.3rc54.04.0.14.0.104.0.24.0.34.0.44.0.54.0.64.0.74.0.84.0.94.0a14.0a24.0a34.0a44.0a54.0b14.0b24.0b34.0b44.0b54.0rc14.14.1.14.1.24.1.34.1.44.1.54.1.64.1a14.1a2	4.2.3
`plone` PyPI	4.3a0 up to 4.3b1, plus listed versions 4.3a14.3a2	4.3b1
`plone` PyPI	before 4.2.3, 4.3a0 up to 4.3b1, plus listed versions 3.23.2.13.2.23.2.33.2a1 Show 45 moreShow less 3.2rc13.33.3.13.3.23.3.33.3.43.3.53.3.63.3b13.3rc13.3rc23.3rc33.3rc43.3rc54.04.0.14.0.104.0.24.0.34.0.44.0.54.0.64.0.74.0.84.0.94.0a14.0a24.0a34.0a44.0a54.0b14.0b24.0b34.0b44.0b54.0rc14.14.1.14.1.24.1.34.1.44.1.54.1.64.1a14.1a2	4.2.34.3b1

What each source reports

NVD Score used8.5

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Record: CVE-2012-5493
CVSS 2.0: 8.5 HighAV:N/AC:M/Au:S/C:C/I:C/A:C
Weakness: CWE-94
Updated: 2026-11-02

CVE ListNo score

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Record: CVE-2012-5493
Updated: 2026-11-02

EUVDEUVD-2014-0053No score

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Record: EUVD-2014-0053
Updated: 2026-11-03

GitHub AdvisoriesGHSA-25jh-5h5r-h33m6.5

Plone Sandbox Bypass

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Record: GHSA-25jh-5h5r-h33m
CVSS 4.0: 6.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-94, CWE-693
Updated: 2026-11-02

OSVGHSA-25jh-5h5r-h33m6.5

Plone Sandbox Bypass

Record: GHSA-25jh-5h5r-h33m
CVSS 4.0: 6.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-693, CWE-94
Updated: 2026-11-02

OSVPYSEC-2014-35No score

gtbn.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with certain permissions to bypass the Python sandbox and execute arbitrary Python code via unspecified vectors.

Record: PYSEC-2014-35
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

This page doesn't list everything

Left out here: 30 versions. The JSON record has them.