CVE-2016-4807 json
Web2py Reflected XSS vulnerability
published 2017-01-11 9 y ago modified 2026-07-07 4 mo ago also GHSA-pvcp-73cg-6f77 , PYSEC-2026-1063 , EUVD-2016-5790
- cvss
- 4.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 1
- Exploit-DB
Summary
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).
Timeline
- First public exploit (EDB-39821)
- Published
Exploit prediction
2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-39821 Web2py 2.14.5 - Multiple Vulnerabilities webapps, 2016-05-16
- packetstormsecurity.com http://packetstormsecurity.com/files/137070/Web2py-2.14.5-CSRF-XSS-Local-File-Inclusion.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | web2py | <=2.14.5 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/39821/
exploit, third-party-advisory, vdb-entry
-
packetstormsecurity.com
/files/137070/Web2py-2.14.5-CSRF-XSS-Local-File-Inclusion.html
web, exploit, third-party-advisory, vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2016-4807
advisory
-
github.com
/web2py/web2py
package
-
exploit-db.com
/exploits/39821
web
-
pypi.org
/project/web2py
package
-
github.com
/advisories/GHSA-pvcp-73cg-6f77
advisory
Sources
- CVE List CVE-2016-4807
- GitHub Advisory GHSA-pvcp-73cg-6f77
- NVD CVE-2016-4807
- OSV PYSEC-2026-1063
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.