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Vulnerability record · CVE-2018-19508 · published 19 December 2018

CVE-2018-19508: Cmsimple cross-site scripting vulnerability

Cmsimple · Cmsimple

CMSimple 4.7.5 has XSS via an admin's upload of an SVG file at a ?userfiles&subdir=userfiles/images/flags/ URI.

4.8 CVSS 3.0 Medium EPSS 0.56% · top 55.7% CWE-79 · Cross-site scripting
4.8CVSS 3.0 base score, v2 3.5
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

CMSimple 4.7.5 has XSS via an admin's upload of an SVG file at a ?userfiles&subdir=userfiles/images/flags/ URI.

CVSS:3.0/AV:N/AC:L/PR:H/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/security-breachlock/CVE-2018-19508/blob/master/Persistent-XSS.pdf ExploitThird Party Advisory
https://github.com/security-breachlock/CVE-2018-19508/blob/master/Persistent-XSS.pdf ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2021-43741Cmsimple path traversal vulnerabilityCMSimple 5.4 is vulnerable to Directory Traversal. The vulnerability exists when a user changes the file name to malicious file on config.php leading…EPSS 4.7%9.1CVE-2024-57548Cmsimple incorrect default permissions vulnerabilityCMSimple 5.16 allows the user to edit log.php file via print page.EPSS 0.47%8.6CVE-2021-47734Cmsimple php remote file inclusion vulnerabilityCMSimple 5.4 contains an authenticated local file inclusion vulnerability that allows remote attackers to manipulate PHP session files and execute ar…EPSS 0.78%8.6CVE-2021-47735Cmsimple code injection vulnerabilityCMSimple 5.4 contains an authenticated remote code execution vulnerability that allows logged-in attackers to inject malicious PHP code into template…EPSS 0.88%8.6CVE-2024-58280Cmsimple vulnerabilityCMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file extensions and upload malicious PH…EPSS 0.94%7.5CVE-2024-57547Cmsimple incorrect permission assignment vulnerabilityInsecure Permissions vulnerability in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the Functional…EPSS 0.57%7.5CVE-2024-57549Cmsimple path traversal vulnerabilityCMSimple 5.16 allows the user to read cms source code through manipulation of the file name in the file parameter of a GET request.EPSS 0.66%7.5CVE-2024-57546Cmsimple vulnerabilityAn issue in CMSimple v.5.16 allows a remote attacker to obtain sensitive information via a crafted script to the validate link function.EPSS 0.58%

Source: NIST National Vulnerability Database (record CVE-2018-19508), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.