What is CVE-2013-4333?

CVE-2013-4333 is a critical-severity vulnerability in Openpne, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2020-01-24.

How severe is CVE-2013-4333?

Critical severity. CVSS v3 base score is 9.1 out of 10.

XXE in Openpne

CVE-2013-4333

OpenPNE 3 versions 3.8.7, 3.6.11, 3.4.21.1, 3.2.7.6, 3.0.8.5 has an External Entity Injection Vulnerability

Vulnerability class: XXE (XML External Entity)

Published 2020-01-24 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.022 (82.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Openpne — versions 3.0.8.6), 3.2.7.7, 3.0.8.5 (Fixed: 3.8.7.1
Tejimaya Openpne — versions 3.0.8.5, 3.2.7.6, 3.4.21.1

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

www.securityfocus.com/bid/62285 (VDB Entry, Third Party Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/87031 (VDB Entry, Third Party Advisory)
www.openwall.com/lists/oss-security/2013/09/11/6 (Patch, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2013-4333?: CVE-2013-4333 is a critical-severity vulnerability in Openpne, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2020-01-24.
How severe is CVE-2013-4333?: Critical severity. CVSS v3 base score is 9.1 out of 10.