How severe is CVE-2014-2054?

No CVSS score has been assigned to CVE-2014-2054 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2014-2054?

CVE-2014-2054 affects the following packages: phpoffice/phpexcel (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2014-2054?

Update phpoffice/phpexcel to 1.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-2054 is resolved across your whole dependency graph.

How do I detect CVE-2014-2054 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for phpoffice/phpexcel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2014-2054 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2014-2054 actively exploited in the wild?

No public exploit code has been indexed for CVE-2014-2054 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2014-2054?

CVE-2014-2054 has an EPSS (Exploit Prediction Scoring System) score of 1.5%, placing it in the 75th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was CVE-2014-2054 published, and has it been updated?

CVE-2014-2054 was published on May 17, 2022 and was last updated on March 31, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

Not in CISA KEV

CVE-2014-2054 — phpexcel

Fix: PHPOffice/PHPExcel@e04bf7e

CVE-2014-2054 is a security vulnerability in phpoffice/phpexcel. A fix is available for phpoffice/phpexcel — see the affected versions and patch details below.

PHPExcel vulnerable to XXE attacks through libxml

Published

May 17, 2022

Updated

Mar 31, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐘phpoffice/phpexcel

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

PHPExcel before 1.8.0, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, does not disable external entity loading in libxml, which allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`phpoffice/phpexcel`	all versions	1.8.0`composer require phpoffice/phpexcel:^1.8.0`

Affected Products

2 products · 20 configurations

Application

owncloud serverowncloud

≤ 5.0.14

17 versions

5.0.05.0.15.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.95.0.105.0.11

Application

phpexcelphpexcel_project

≤ 1.7.9

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for phpoffice/phpexcel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update phpoffice/phpexcel to 1.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-2054 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2014-2054 in your dependencies?

Find it across Packagist, including transitive dependencies.

Scan my dependencies How O3 SCA works