CVE-2025-58151

CVE-2025-58151 affects varstored, a Xen/Xapi component that handles UEFI variables and maps guest memory to OVMF. The vulnerability arises from TOCTOU due to insufficient compiler barriers in the shared buffer, with exploitation depending on compiler-generated code, and the attacker potentially c...

CVE-2025-58151

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

EUVD-2025-210447

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

CVE-2025-58151 varstored: TOCTOU issues with mapped guest memory

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

CVE-2025-58151 varstored: TOCTOU issues with mapped guest memory

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests

Summary The modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an...

USN-8520-1: Expat vulnerability

It was discovered that Expat used insufficient entropy when generating hash salt values for its internal hash table. An attacker could use this to craft an XML document that triggers hash flooding, leading to a denial of service...

CVE-2026-7558

The Age Verification & Identity Verification by Token of Trust plugin for WordPress is vulnerable to unauthorized access in all versions up to and including 4.0.2. This is due to the handleexporttable function being registered on the WordPress 'init' hook, which fires for all requests, including...

CVE-2026-7558

CVE-2026-7558 affects the WordPress plugin Age Verification & Identity Verification by Token of Trust (

EUVD-2026-42524

The Age Verification & Identity Verification by Token of Trust plugin for WordPress is vulnerable to unauthorized access in all versions up to and including 4.0.2. This is due to the handleexporttable function being registered on the WordPress 'init' hook, which fires for all requests, including...

CVE-2026-7558 Age Verification & Identity Verification by Token of Trust <= 4.0.2 - Missing Authorization to Unauthenticated Information Exposure via 'tot_export_table' Parameter

The Age Verification & Identity Verification by Token of Trust plugin for WordPress is vulnerable to unauthorized access in all versions up to and including 4.0.2. This is due to the handleexporttable function being registered on the WordPress 'init' hook, which fires for all requests, including...

CVE-2026-7558 Age Verification & Identity Verification by Token of Trust <= 4.0.2 - Missing Authorization to Unauthenticated Information Exposure via 'tot_export_table' Parameter

The Age Verification & Identity Verification by Token of Trust plugin for WordPress is vulnerable to unauthorized access in all versions up to and including 4.0.2. This is due to the handleexporttable function being registered on the WordPress 'init' hook, which fires for all requests, including...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine x86 shadow paging mechanism. This use-after-free vulnerability arises from incorrect handling of Guest Frame Numbers GFNs when guest page tables are modified. A local attacker with control over a guest virtual machine could...

CVE-2025-58151: Time-of-check Time-of-use (TOCTOU) Race Condition

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

ANT-2026-8AZGCAHG · gdal · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-8AZGCAHG: Heap-buffer-overflow in gdal Running th...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity via the toc process. An attacker can interfere with same-page navigation, CSS selectors, or JavaScript handlers by creating content with predictable id attributes that collide with...

CVE-2026-59930

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

DEBIAN-CVE-2026-59930

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

CVE-2026-59930

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

CVE-2026-59930 Mistune toc / TableOfContents directive: heading IDs use predictable `toc_N` numbering with no slugification, allowing collision with attacker-controlled `id="toc_N"` content

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...