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CVE-2012-5493

26
FAUCET Score

CVE-2012-5493 describes a critical Python sandbox bypass vulnerability in Plone versions prior to 4.2.3 and 4.3 beta 1. Authenticated users with specific permissions could exploit this flaw to execute arbitrary Python code, leading to complete compromise of the system. With a CVSS score of 8.5 and a FAUCET Risk Score of 65/100, this vulnerability is considered highly severe due to its network-based attack vector, medium complexity, and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.2CPE matchmatch criteria
cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.2:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

8.5HIGH

AV:N/AC:M/Au:S/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 71st percentile among its peer group of 1,162 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: ploneFixed in: 4.2.3
pippatch availablevia ghsa
Product: PloneFixed in: 4.3b1

Vendor Advisories (2)

pipGHSA-25jh-5h5r-h33mmedium

Plone Sandbox Bypass

May 17, 2022
redhatCVE-2012-5493Moderate

(Plone): Restricted Python sandbox escape

Nov 6, 2012

References

github.com / plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txt
plone.org / products/plone-hotfix/releases/20121106
Patch
plone.org / products/plone/security/advisories/20121106/09
Vendor Advisory
openwall.com / lists/oss-security/2012/11/10/1