CVE-2016-4808

Exp

Web2py versions 2.14.5 and below was affected by CSRF (Cross Site Request Forgery) vulnerability, which allows an attacker to trick a logged in user to perform some unwanted actions i.e An attacker can trick an victim to disable the installed application just by sending a URL to victim.

Published: 2017-01-11 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-4808 is rated High Exploit Risk (77.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.74%). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.51% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2016-4808

EDB-ID Source Kind Published Link
39821 exploit_db edb 2016-05-16 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2016-4808

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.23% 1.74% +1.51%
2 2025-03-30 0.26% 0.23% -0.03%
3 2025-03-29 — 0.26% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-4808

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2016-4808

GitHub Security Advisory for CVE-2016-4808

GHSA-gp69-xcm6-ffqj · Severity: medium · Ecosystem: pip — Web2py Cross-Site Request Forgery vulnerability

Affected software / configurations for CVE-2016-4808

Vendor Product Version Raw CPE
web2py web2py <= 2.14.5 cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*

References for CVE-2016-4808

URL Tags
http://packetstormsecurity.com/files/137070/Web2py-2.14.5-CSRF-XSS-Local-File-Inclusion.html Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/39821/ Exploit Third Party Advisory VDB Entry
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