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MEDIUM severity

CVE-2018-19311 — centreon

MEDIUMFix: centreon/centreon-archived#6632

CVE-2018-19311 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in centreon/centreon. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for centreon/centreon — see the affected versions and patch details below.

Centreon XSS Vulnerability

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs67th percentile — riskier than 67% of all scored CVEsHighest risk
0.00%0.55%1.11%1.66%0.1%1.2%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘centreon/centreon

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

Centreon 3.4.x (fixed in Centreon 18.10.0) allows XSS via the Service field to the main.php?p=20201 URI, as demonstrated by the "Monitoring > Status Details > Services" screen.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistcentreon/centreon≥ 18.0.0&&< 18.10.018.10.0composer require centreon/centreon:^18.10.0

Affected Products

1 product · 1 configurations
Application
centreoncentreon
≥ 3.4.0 && ≤ 3.4.9
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Centreon 3.4.x (fixed in Centreon 18.10.0) allows XSS via the Service fi…

roothc.com.brNVDJul 2019

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update centreon/centreon to 18.10.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-19311 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Centreon 3.4.x (fixed in Centreon 18.10.0) allows XSS via the Service field to the `main.php?p=20201` URI, as demonstrated by the "Monitoring > Status Details > Services" screen.
O3 Security · Impact-Aware SCA

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CVE-2018-19311: centreon XSS — Fixed in 18.10.0