TI-2016-03363 Aliases CVE-2016-3957 GHSA-p6rg-cchx-f5x4

The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to…

MEDIUM 50CWE-502Published 2018-02-06 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies, which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key.

Why it matters now

EPSS 0.04937 92nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:web2py:web2py::::::::	before 2.14.2	Vulnerable	web2py

cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:* Versions before 2.14.2 Vulnerable ·web2py

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2016-3957
2026-10-03 Alias added: GHSA-p6rg-cchx-f5x4

References

Exploit 1

https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/

Advisory 2

TI-2023-24174 OS command injection in web2py CVSS 3.1CRITICAL 9.8
TI-2016-03359 The sample web application in web2py before 2.14.2 might allow remote attackers to… CVSS 3.0CRITICAL 9.8
TI-2016-08383 web2py before 2.14.6 does not properly check if a host is denied before verifying… CVSS 3.0CRITICAL 9.8
TI-2016-04151 Web2py versions 2.14.5 and below was affected by Local File Inclusion vulnerability… CVSS 3.0HIGH 7.5
TI-2016-04153 Web2py versions 2.14.5 and below was affected by CSRF (Cross Site Request Forgery)… CVSS 3.0HIGH 8.8
TI-2016-03358 web2py before 2.14.1, when using the standalone version, allows remote attackers to… CVSS 3.0HIGH 7.8

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences