CVE-2021-47937 | THREATINT

Description

e107 CMS 2.3.0 contains a remote code execution vulnerability that allows authenticated users with theme installation permissions to execute arbitrary commands by uploading malicious theme files. Attackers can upload a crafted theme package through the theme.php endpoint that deploys a web shell to the e107_themes directory, then execute system commands via the payload.php script.

PUBLISHED Reserved 2026-02-01 | Published 2026-05-10 | Updated 2026-05-10 | Assigner VulnCheck

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Unrestricted Upload of File with Dangerous Type

Product status

2.3.0

affected

Credits

Halit AKAYDIN (hLtAkydn) finder

References

www.exploit-db.com/exploits/50315 (ExploitDB-50315) exploit

e107.org/ (Official Product Homepage) product

e107.org/download (Product Reference) product

www.vulncheck.com/...-remote-code-execution-via-theme-upload (VulnCheck Advisory: e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme Upload) third-party-advisory

cve.org (CVE-2021-47937)

nvd.nist.gov (CVE-2021-47937)

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