VulnerabilityModified
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.
CRITICAL 9.8EPSS 1.16%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.16% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- xpressengine/xpressengine
- Source
- vuln@krcert.or.kr
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.