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Vulnerability record · CVE-2018-17556 · published 26 September 2018

CVE-2018-17556: Modx revolution cross-site scripting vulnerability

Modx · Modx Revolution

MODX Revolution v2.6.5-pl allows stored XSS via a Create New Media Source action.

5.4 CVSS 3.0 Medium EPSS 0.59% · top 53.8% CWE-79 · Cross-site scripting
5.4CVSS 3.0 base score, v2 3.5
0.59%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

MODX Revolution v2.6.5-pl allows stored XSS via a Create New Media Source action.

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/modxcms/revolution/issues/14094 Issue TrackingThird Party Advisory
https://github.com/modxcms/revolution/issues/14094 Issue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-7324Modx revolution code injection vulnerabilitysetup/templates/findcore.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the core_path paramete…EPSS 2.2%9.8CVE-2017-7321Modx revolution code injection vulnerabilitysetup/controllers/welcome.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the config_key parame…EPSS 2.2%9.1CVE-2020-25911Modx revolution xml external entity (xxe) vulnerabilityA XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information di…EPSS 2.4%8.8CVE-2017-9069Modx revolution unrestricted file upload vulnerabilityIn MODX Revolution before 2.5.7, a user with file upload permissions is able to execute arbitrary code by uploading a file with the name .htaccess.EPSS 1.9%8.1CVE-2017-7322Modx revolution improper certificate validation vulnerabilityThe (1) update and (2) package-installation features in MODX Revolution 2.5.4-pl and earlier do not verify X.509 certificates from SSL servers, which…EPSS 1.2%8.1CVE-2017-7323Modx revolution vulnerabilityThe (1) update and (2) package-installation features in MODX Revolution 2.5.4-pl and earlier use http://rest.modx.com by default, which allows man-in…EPSS 2.1%7.5CVE-2019-1010123Modx revolution unrestricted file upload vulnerabilityMODX Revolution Gallery 1.7.0 is affected by: CWE-434: Unrestricted Upload of File with Dangerous Type. The impact is: Creating file with custom a fi…EPSS 1.2%7.5CVE-2018-1000208Modx revolution path traversal vulnerabilityMODX Revolution version <=2.6.4 contains a Directory Traversal vulnerability in /core/model/modx/modmanagerrequest.class.php that can result in remov…EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2018-17556), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.