CVE-2021-26642 — HIGH (8.8)

Q: How severe is CVE-2021-26642?

CVE-2021-26642 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-26642?

Check the references section above for vendor advisories and patch information. Affected products include: Xpressengine Xpressengine, Microsoft Windows.

Vulnerability Description

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.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xpressengine	Xpressengine	< 3.0.14
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-434

References

https://boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=67125Third Party Advisory
https://boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=67125Third Party Advisory

FAQ

What is CVE-2021-26642?

CVE-2021-26642 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...

How severe is CVE-2021-26642?

CVE-2021-26642 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26642?

Check the references section above for vendor advisories and patch information. Affected products include: Xpressengine Xpressengine, Microsoft Windows.