CVE-2016-4807

MEDIUMNVD 4.84.8—Weaponized

4.8

Web2py versions 2.14.5 and below was affected by Reflected XSS vulnerability, which allows an attacker to perform an XSS attack on logged in user (admin).

CVSS v3: 4.8
EG Score: 4.8(medium)
EPSS: 58.6%
KEV: Not listed

Published

January 11, 2017

Last Modified

May 6, 2026

References (4)

cve@mitrehttp://packetstormsecurity.com/files/137070/Web2py-2.14.5-CSRF-XSS-Local-File-Inclusion.html
cve@mitrehttps://www.exploit-db.com/exploits/39821/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/137070/Web2py-2.14.5-CSRF-XSS-Local-File-Inclusion.html
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/39821/

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
pip	web2py	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
web2py	1.96.4, 1.98.2, 2.1.1	—	—

Data Freshness Timeline

(refreshed 9× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 17:18 UTCEG score recompute
2026-05-22 17:18 UTCGHSA enrichment
2026-05-21 22:40 UTCepss_batch
2026-05-20 22:37 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-39821✓ verified
First seen May 16, 2016
Web2py 2.14.5 - Multiple Vulnerabilities
Open source ↗

Frequently asked(5)

What is CVE-2016-4807?

CVE-2016-4807 is a medium vulnerability published on January 11, 2017. Web2py versions 2.14.5 and below was affected by Reflected XSS vulnerability, which allows an attacker to perform an XSS attack on logged in user (admin).

When was CVE-2016-4807 disclosed?

CVE-2016-4807 was first published in the National Vulnerability Database on January 11, 2017, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2016-4807 actively exploited?

CVE-2016-4807 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 58.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-4807?

CVE-2016-4807 has a CVSS v3 base score of 4.8 (NVD).

How do I remediate CVE-2016-4807?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-4807, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-4807

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