EUVD-2026-45401

A stored cross-site scripting XSS vulnerability exists in the POST /api/prompts/share endpoint of parisneo/lollms latest version. The endpoint stores attacker-controlled promptcontent into DBDirectMessage.content without server-side sanitization. When a victim opens the direct message DM thread,...

CVE-2026-12228 Stored XSS in Direct Messages via Prompt Sharing in parisneo/lollms

A stored cross-site scripting XSS vulnerability exists in the POST /api/prompts/share endpoint of parisneo/lollms latest version. The endpoint stores attacker-controlled promptcontent into DBDirectMessage.content without server-side sanitization. When a victim opens the direct message DM thread,...

CVE-2026-12228

The CVE describes a stored XSS in parisneo/lollms via POST /api/prompts/share where attacker-controlled prompt_content is saved to DBDirectMessage.content and later rendered with v-html in the DM UI. The frontend regex-based sanitizer fails to fully sanitize HTML, enabling malicious payloads to r...

PYSEC-2026-2732 Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Deactivated Channel Members Retain Full Access to Group/DM Channels Affected Component Channel membership authorization check: - backend/openwebui/models/channels.py lines 663-673, isuserchannelmember - Used at 15 locations in backend/openwebui/routers/channels.py Affected Versions Current main...

GHSA-W4V6-G3WM-W36C OpenClaw: QQBot admin commands could skip DM-only and allowFrom policy

Summary QQBot admin commands could skip DM-only and allowFrom policy. In affected versions, a QQBot sender able to trigger the exported command could route admin commands without the QQBot-specific DM-only and allowFrom checks. This advisory is scoped to the named feature and configuration. It do...

EUVD-2026-36625

OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event handlers that fails to validate channel type metadata. Attackers can bypass intended DM policy decisions by sending crafted Mattermost events missing channel type information to process restricted conte...

CVE-2026-6046 Plugin bot username conflict allows user account to be used as bot identity in Mattermost Server

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 fail to validate that a username returned during bot registration belongs to a bot account, which allows an unprivileged attacker to intercept private messages sent by plugins via direct message channels ...

CVE-2026-6046 Plugin bot username conflict allows user account to be used as bot identity in Mattermost Server

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 fail to validate that a username returned during bot registration belongs to a bot account, which allows an unprivileged attacker to intercept private messages sent by plugins via direct message channels ...

CVE-2026-5163

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

PT-2026-48346

Name of the Vulnerable Software and Affected Versions klever-go versions prior to 1.7.18 Description An issue exists in the directMessageHandler function within the network/p2p/libp2p/netMessenger.go file. The software spawns a new goroutine for every incoming direct message before the antiflood...

CVE-2026-34507 OpenClaw < 2026.4.29 - Policy Bypass in QQBot Admin Commands via DM-only and allowFrom Checks

OpenClaw before 2026.4.29 contains a policy bypass vulnerability in QQBot admin commands that allows authenticated senders to skip DM-only and allowFrom policy checks. Attackers can route admin commands from unauthorized senders or contexts to execute restricted behavior that policy should have...

CVE-2026-34507 OpenClaw < 2026.4.29 - Policy Bypass in QQBot Admin Commands via DM-only and allowFrom Checks

OpenClaw before 2026.4.29 contains a policy bypass vulnerability in QQBot admin commands that allows authenticated senders to skip DM-only and allowFrom policy checks. Attackers can route admin commands from unauthorized senders or contexts to execute restricted behavior that policy should have...

Mattermost Server 11.5.x < 11.5.2 Missing Authorization (MMSA-2026-00645)

The version of Mattermost Server installed on the remote host is affected by a vulnerability as referenced in the MMSA-2026-00645 advisory. - Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker t...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the post rewrite endpoint. An attacker can gain unauthorized access to the content of threads in private channels and direct messages by sending a crafted request. Remediation Upgrade...

Missing Authorization

Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Missing Authorization via the post rewrite endpoint. An attacker can gain unauthorized access to the content of threads in private channels and...

GHSA-8R89-8W26-CQ32 Mattermost doesn't verify channel membership when processing AI-assisted message rewrites

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

Mattermost doesn't verify channel membership when processing AI-assisted message rewrites

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

CVE-2026-5163

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

CVE-2026-5163

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...

CVE-2026-5163 Missing authorization check in AI message rewrite endpoint allows access to private thread content

Mattermost versions 11.5.x = 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite...