What is CVE-2018-14065?

CVE-2018-14065 is a critical-severity vulnerability in Phpoffice Project Common, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-07-15.

How severe is CVE-2018-14065?

Critical severity. CVSS v3 base score is 9.8 out of 10.

XXE in Phpoffice Project Common

CVE-2018-14065

XMLReader.php in PHPOffice Common before 0.2.9 allows XXE.

Vulnerability class: XXE (XML External Entity)

Published 2018-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.7% 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

Phpoffice Project Common

Weakness classification (CWE)

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

References

github.com/PHPOffice/Common/releases/tag/0.2.9 (Third Party Advisory)
github.com/PHPOffice/PHPWord/issues/1421 (Third Party Advisory)
github.com/PHPOffice/Common/pull/23 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-14065?: CVE-2018-14065 is a critical-severity vulnerability in Phpoffice Project Common, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-07-15.
How severe is CVE-2018-14065?: Critical severity. CVSS v3 base score is 9.8 out of 10.