CVE-2021-26642
Last modified
CVE-2021-26642 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.16% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xpressengine | Xpressengine | < 3.0.14 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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