Vulnerability Details : CVE-2021-26642
When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.
Vulnerability category: Execute code
Products affected by CVE-2021-26642
- cpe:2.3:a:xpressengine:xpressengine:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26642
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26642
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
KrCERT/CC |
CWE ids for CVE-2021-26642
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by:
- nvd@nist.gov (Primary)
- vuln@krcert.or.kr (Secondary)
References for CVE-2021-26642
-
https://boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=67125
Security Advisory | KrCERT/CC - KISA 인터넷 보호나라&KrCERTThird Party Advisory
Jump to