CVE-2016-3952

Name: CVE-2016-3952
Creator: NVD / NIST
Published: 2018-02-06T18:29:00.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.08%

Last modified Jun 17, 2026

CVE-2016-3952 is a vulnerability of currently unknown severity. web2py before 2.14.1, when using the standalone version, allows remote attackers to obtain environment variable values via a direct request to examples/template_examples/beautify. NOTE: this issue can be leveraged by remote attackers to gain administrative access.. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

web2py before 2.14.1, when using the standalone version, allows remote attackers to obtain environment variable values via a direct request to examples/template_examples/beautify. NOTE: this issue can be leveraged by remote attackers to gain administrative access.

Metrics

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-255

Affected Software

Vendor	Product	Versions
Web2py	Web2py	< 2.14.1

References

https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/Exploit, Technical Description, Third Party Advisory
https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40Third Party Advisory
https://usn.ubuntu.com/4030-1/
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/Exploit, Technical Description, Third Party Advisory
https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40Third Party Advisory
https://usn.ubuntu.com/4030-1/

Timeline

Published: Feb 6, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-3952?

How severe is CVE-2016-3952?

Severity scoring for CVE-2016-3952 is pending analysis. The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2016-3952?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-3952?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST