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Not in CISA KEV
MEDIUM severity

CVE-2018-11198

MEDIUM

CVE-2018-11198 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in mautic/core. O3 Security confirms whether CVE-2018-11198 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

XSS vulnerability in Author URL of themes in Mautic

Also known asGHSA-xcf7-cj8q-pcjm
Published
Sep 6, 2019
Updated
Aug 7, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Aug 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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

An issue was discovered in Mautic 2.13.1. There is Stored XSS via the authorUrl field in config.json.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmautic/core2.13.1&&< 2.14.02.14.0

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. 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 mautic/core to 2.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-11198 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-2018-11198 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-2018-11198. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

An issue was discovered in Mautic 2.13.1. There is Stored XSS via the authorUrl field in config.json.
O3 Security · Impact-Aware SCA

Is CVE-2018-11198 in your dependencies?

O3 detects CVE-2018-11198 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

CVE-2018-11198: XSS vulnerability in Author… | O3 Security