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🐘 Packagist

CVE-2018-14065

CRITICAL

CVE-2018-14065 is a critical-severity (CVSS 9.8) XML External Entity (XXE) vulnerability in phpoffice/common. O3 Security confirms whether CVE-2018-14065 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

PHPOffice Common Improper Restriction of XML External Entity Reference

Also known asGHSA-2853-hf2g-9843
Published
Jul 15, 2018
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐘phpoffice/common

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

XMLReader.php in PHPOffice Common before 0.2.9 allows XXE.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistphpoffice/commonall versions0.2.9

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for phpoffice/common. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update phpoffice/common to 0.2.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-14065 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2018-14065 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2018-14065. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

XMLReader.php in PHPOffice Common before 0.2.9 allows XXE.
O3 Security · Impact-Aware SCA

Is CVE-2018-14065 in your dependencies?

O3 detects CVE-2018-14065 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.