Vulnerability Details : CVE-2021-28977
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,
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-28977
- cpe:2.3:a:get-simple:getsimplecms:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28977
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28977
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
1.7
|
2.7
|
NIST |
CWE ids for CVE-2021-28977
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28977
-
https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1336
Cross Site Scripting(XSS) Vulnerability via upload in Latest Release 3.3.16 admin/upload.php · Issue #1336 · GetSimpleCMS/GetSimpleCMS · GitHubThird Party Advisory
Jump to