What is CVE-2013-4796?

CVE-2013-4796 is a high-severity vulnerability in Reviewboard, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-12-27.

How severe is CVE-2013-4796?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Reviewboard

CVE-2013-4796

ReviewBoard 1.6.17 allows code execution by attaching PHP scripts to review request

Vulnerability class: Unrestricted File Upload

Published 2019-12-27 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.019 (79.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Reviewboard — versions 1.6.17

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.tripwire.com/state-of-security/vulnerability-management/vulnerabilities-its… (Third Party Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/86411 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2013-4796?: CVE-2013-4796 is a high-severity vulnerability in Reviewboard, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-12-27.
How severe is CVE-2013-4796?: High severity. CVSS v3 base score is 8.8 out of 10.