CVE-2020-13978
HIGHMonstra CMS 3.0.4 - Authenticated OS Command Injection via Theme Module Chunk Edit
Title source: llmDescription
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
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/monstra-cms/monstra/issues/464
Scores
CVSS v3
7.2
EPSS
0.0127
EPSS Percentile
66.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-78
Status
published
Products (1)
monstra/monstra_cms
3.0.4
Published
Jun 09, 2020
Tracked Since
Feb 18, 2026