VULNERABILITY INTELLIGENCE

CVE-2021-28977

CVSS score4.8 MEDIUM
EPSS probability0.51%
CISA KEVNot currently listed
Published2021-06-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

Cross Site Scripting vulnerability in GetSimpleCMS 3.3.16 in admin/upload.php by adding comments or jpg and other file header information to the content of xla, pages, and gzip files,

Weakness classification

  • nvd@nist.gov: CWE-79

Primary references