Is CVE-2011-4213 in the CISA KEV catalog?

No. CVE-2011-4213 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-4213?

CVE-2011-4213 has a CVSS v2 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2011-4213?

CVE-2011-4213 has an EPSS score of 0.24% (15th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-4213?

Upgrade app engine python sdk to 1.5.4 or later.

CVE & CISA-KEV Catalog

CVE-2011-4213

HIGH

7.2

CVSS v2

NVD

Description

The sandbox environment in the Google App Engine Python SDK before 1.5.4 does not properly prevent use of the os module, which allows local users to bypass intended access restrictions and execute arbitrary commands via a file_blob_storage.os reference within the code parameter to _ah/admin/interactive/execute, a different vulnerability than CVE-2011-1364.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

app engine python sdkNVD

Affected:< 1.5.4Fixed in:1.5.4CVE-2011-4213derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.24%probability of exploitation in 30 days

15thpercentile

Low risk: more likely to be exploited than 15% of all known CVEs.

References

Patch1

code.google.com

Exploit1

blog.watchfire.com

VDB Entry1

exchange.xforce.ibmcloud.com

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.