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18 May 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Low 3.9

    FacturaScripts: Reflected Cross-Site Scripting (XSS) via Cookie Manipulation

    FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the fsNick cookie parameter. The application reflects the cookie's value directly into the HTML …

  • Low 3.3

    Claude HUD 0.0.12 Path Traversal via transcript_path

    Claude HUD through 0.0.12, patched in commit 234d9aa, contains a path traversal vulnerability that allows attackers to read arbitrary files by supplying an unvalidated transcript_path value via stdin JSON. Attackers can access any file readable by the process…

  • Low —

    Sulu: Used API Keys may be available via Admin API

    ### Impact The users endpoint controller exposes a project's apiKey field to the logged-in user, provided they have permission for that endpoint. This only has impact if a project itself uses that specific field, Sulu itself does nothing with it and has no au…

  • Low —

    Sveltia CMS: Stored XSS in entry summary rendering via entity-decoded HTML

    ### Impact A stored cross-site scripting (XSS) vulnerability affected entry summary rendering in Sveltia CMS. Entry summaries that allowed limited Markdown were parsed, sanitized, and then HTML entities were decoded. This order allowed specially crafted entit…

  • Low 3.7

    opensourcepos Open Source Point of Sale Employee Login Employee.php login weak hash

    A flaw has been found in opensourcepos Open Source Point of Sale up to 3.4.2. Impacted is the function Login of the file app/Models/Employee.php of the component Employee Login. This manipulation causes use of weak hash. Remote exploitation of the attack is p…

  • Low 3.5

    Calling window.close() from server-side content causes crash in the Mattermost Desktop App

    Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking {{window.…

  • Low 3.5

    SSRF via Host Header Spoofing in Custom Slash Commands

    Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to validate the Host header when constructing response URLs for custom slash commands which allows an authenticated attacker to redirect slash command responses to an attacker-controlled server vi…

  • Low 3.1

    Playbooks Plugin fails to validate team transfers, allowing unauthorized removal of member access via playbook update

    Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to check if {{team_id}} was being changed when updating playbooks, allowing users with only {{Manage Playbook Configurations}} permission to change a playbook's team, bypassing manage members rest…

  • Low 3.8

    Unescaped variables during error page composition

    Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to escape some variables that could contain malicious content during error page composition which allows an attacker with access to edit some site configuration to execute some malicious code via …

  • Low 3.7

    Insufficient token rotation validation in remote cluster invite confirmation

    Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to validate that the RefreshedToken differs from the original invite token during remote cluster invite confirmation which allows an authenticated attacker to bypass token rotation and reuse the o…

  • Low 3.1

    OAuth authorization code client binding not enforced during token redemption in Mattermost

    Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce client identity binding during the OAuth authorization code redemption flow which allows an authenticated OAuth client to redeem authorization codes issued to a different client via a c…