5.4

CVE-2026-70481

Exploit

Open WebUI: Any member with write access to a standard channel can edit or delete other members' messages

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access is the same grant a member needs to post, any ordinary participant in a shared standard channel could rewrite or permanently delete another participant message, while group and direct message handlers enforced authorship. This issue is fixed in 0.11.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openwebui ≫ Open Webui Version >= 0.5.0 < 0.11.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.222
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.4 2.8 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/open-webui/open-webui/releases/tag/v0.11.0
Release Notes
https://github.com/open-webui/open-webui/commit/c609ec41154fa092fa0af80d9d365de06b666286
Patch
https://github.com/open-webui/open-webui/pull/27197
Patch
Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-mj5r-jf49-m3w7
Patch
Vendor Advisory
Exploit