Public proof of conceptFix available

CVE-2016-4808

Q: Is CVE-2016-4808 actively exploited?

Active exploitation of CVE-2016-4808 has not been confirmed. Its EPSS score was 1.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-4808?

CVE-2016-4808 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2017-01-11
WeaknessCWE-352

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2017-01-1116:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-4808?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4808?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Web2py

Branch	Affected	Fixed in	Source
2.14	≤ 2.14.5	no fix published	NVD

web2py

Branch	Affected	Fixed in	Source
2.14	< 2.14.6	2.14.6	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: EDB-39821
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-352read 2026-10-23
FIRST EPSSEPSS score1.8 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2017-01-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-4808?

Is CVE-2016-4808 actively exploited?

Active exploitation of CVE-2016-4808 has not been confirmed. Its EPSS score was 1.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-4808?

CVE-2016-4808 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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