PoC Index85,092 CVEs with PoCs

CVE-2026-82906

sdcb chats Signed File Download Endpoint FileController.cs DownloadPublic missing authentication

LOW 2.9EPSS 0.6%

A flaw has been found in sdcb chats up to 1.12.0. This impacts the function DownloadPublic of the file src/BE/web/Controllers/Chats/Files/FileController.cs of the component Signed File Download Endpoint. This manipulation causes missing authentication. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitability is said to be difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected
sdcb · chats
CVSS v4.0 VULDB
2.9 LOWCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULDB
3.7 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v2.0 VULDB
2.6 LOWAV:N/AC:H/Au:N/C:P/I:N/A:N
EPSS
0.57% chance of exploitation in the next 30 days, 46th percentile
Published
2026-08-31
Updated
2026-09-01

Proof-of-concept exploits (1)

References

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