CVE-2026-80235

9.3 criticalEPSS 0.9%

Critical (9.3). EPSS 0.9% chance of exploitation in the next 30 days.

EFence developed by Thinking Software Technology has an Arbitrary File Upload vulnerability. Unauthenticated remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2026-08-26
Modified: 2026-09-03
Record from: the NVD, synced 2026-10-19

References

https://www.twcert.org.tw/en/cp-139-11137-c6e5f-2.html
https://www.twcert.org.tw/tw/cp-132-11133-e0167-1.html

Check your stack JSON