Any URLs with download_attachment.php under templates or home folders can allow arbitrary files downloaded without login in BroadLearning eClass before version ip.2.5.10.2.1.
https://tvn.twcert.org.tw/taiwanvn/TVN-201906004
http://surl.twcert.org.tw/aTxze
https://zeroday.hitcon.org/vulnerability/ZD-2019-00423
Source: Mitre, NVD
Published: 2019-07-11
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.0047