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    CVE-2021-28998

    File upload vulnerability in CMS Made Simple through 2.2.15 allows remote authenticated attackers to gain a webshell via a crafted phar file.

    Published:May 8, 2023
    Last Modified:Jan 29, 2025
    EPS:May 8, 2023
    EPSS Score:0.00307
    CVSS Score:7.2

    Affected Products

    Vendor
    Cmsmadesimple
    Product
    Cms Made Simple

    Exploits

    https://github.com/beerpwn/CVE/blob/master/cms_made_simple_2021/file_upload_RCE/File_upload_to_RCE.mdhttps://github.com/beerpwn/CVE/blob/master/cms_made_simple_2021/file_upload_RCE/File_upload_to_RCE.md

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2020-37238 (CVSS 5.1) — CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users wi…
    CVE-2025-5153 (CVSS 5.1) — A vulnerability, which was classified as problematic, has been found in CMS Made Simple 2.2.21. This issue aff…
    CVE-2024-1529 (CVSS 7.4) — Vulnerability in CMS Made Simple 2.2.14, which does not sufficiently encode user-controlled input, resulting i…
    CVE-2024-1528 (CVSS 7.4) — CMS Made Simple version 2.2.14, does not sufficiently encode user-controlled input, resulting in a Cross-Site …
    CVE-2024-1527 (CVSS 9.8) — Unrestricted file upload vulnerability in CMS Made Simple, affecting version 2.2.14. This vulnerability allows…
    CVE-2024-27623 (CVSS 5.9) — CMS Made Simple version 2.2.19 is vulnerable to Server-Side Template Injection (SSTI). The vulnerability exist…
    CVE-2024-27625 (CVSS 4.8) — CMS Made Simple Version 2.2.19 is vulnerable to Cross Site Scripting (XSS). This vulnerability resides in the …
    CVE-2024-27622 (CVSS 7.2) — A remote code execution vulnerability has been identified in the User Defined Tags module of CMS Made Simple v…
    CVE-2023-43352 (CVSS 7.8) — An issue in CMSmadesimple v.2.2.18 allows a local attacker to execute arbitrary code via a crafted payload to …
    CVE-2023-43360 (CVSS 5.4) — Cross Site Scripting vulnerability in CMSmadesimple v.2.2.18 allows a local attacker to execute arbitrary code…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High