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MEDIUM severity

Mautic Cross Site Scripting (XSS) vulnerabilityGHSA-358v-cqjc-2pcq

MEDIUM

GHSA-358v-cqjc-2pcq is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in mautic/core. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for mautic/core — see the affected versions and patch details below.

Also known asCVE-2017-1000506
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs65th percentile — riskier than 65% of all scored CVEsHighest risk
0.00%0.54%1.07%1.61%0.4%1.1%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
🐘mautic/core

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

Mautic version 2.11.0 and earlier contains a Cross Site Scripting (XSS) vulnerability in Company's name that can result in denial of service and execution of javascript code.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmautic/coreall versions2.14.2composer require mautic/core:^2.14.2

Affected Products

1 product · 1 configurations
Application
mauticmautic
≤ 2.11.0
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.

Mautic version 2.11.0 and earlier contains a Cross Site Scripting (XSS) …

github.comNVDFeb 2018

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update mautic/core to 2.14.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-358v-cqjc-2pcq 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

Mautic version 2.11.0 and earlier contains a Cross Site Scripting (XSS) vulnerability in Company's name that can result in denial of service and execution of javascript code.
O3 Security · Impact-Aware SCA

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Mautic Cross Site Scripting (XSS) vulnerability (Medium 6.1)