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Vulnerabilities

Monstra Monstra CMS

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

9CVEs
CVE-2018-11678
plugins/box/users/users.plugin.php in Monstra CMS 3.0.4 allows Login Rate Limiting Bypass via manipulation of the login_attempts cookie.
Published 2018-06-05 · Modified
9.8EPSS 0.017
CVE-2020-23219
Monstra CMS 3.0.4 allows attackers to execute arbitrary code via a crafted payload entered into the "Snippet content" field under the "Edit Snippet" module.
Published 2021-07-01 · Modified
8.8EPSS 0.016
CVE-2025-69906
Monstra CMS v3.0.4 contains an arbitrary file upload vulnerability in the Files Manager plugin. The application relies on blacklist-based file extension validation and stores uploaded files directly in a web-accessible directory. Under typical server configurations, this can allow an attacker to upload files that are interpreted as executable code, resulting in remote code execution.
Published 2026-02-05 · Analyzed
8.8EPSS 0.007
CVE-2020-13978
Monstra CMS 3.0.4 allows an attacker, who already has administrative access to modify .chunk.php files on the Edit Chunk screen, to execute arbitrary OS commands via the Theme Module by visiting the admin/index.php?id=themes&action=edit_chunk URI. NOTE: there is no indication that the Edit Chunk feature was intended to prevent an administrator from using PHP's exec feature
Published 2020-06-09 · Modified
7.2EPSS 0.013
CVE-2020-20691
An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.
Published 2021-09-27 · Modified
6.5EPSS 0.009
CVE-2018-11227
Monstra CMS 3.0.4 and earlier has XSS via index.php.
Published 2019-07-03 · Modified
6.1EPSS 0.047
CVE-2020-23697
Cross Site Scripting vulnerabilty in Monstra CMS 3.0.4 via the page feature in admin/index.php.
Published 2021-07-06 · Modified
5.4EPSS 0.019
CVE-2018-19599
Monstra CMS 1.6 allows XSS via an uploaded SVG document to the admin/index.php?id=filesmanager&path=uploads/ URI. NOTE: this is a discontinued product.
Published 2020-03-02 · Modified
5.4EPSS 0.007
CVE-2020-23205
A stored cross site scripting (XSS) vulnerability in Monstra CMS version 3.0.4 allows attackers to execute arbitrary web scripts or HTML via crafted a payload entered into the "Site Name" field under the "Site Settings" module.
Published 2021-07-01 · Modified
5.4EPSS 0.005