CVE-2026-18121 Concrete CMS 9.5.2 and below is vulnerable to an authorization bypass (IDOR) in the Calendar block's frontend event dialog (/ccm/calendar/view_event/{bID}/{occurrence_id}).

Concrete CMS 9.5.2 and below is vulnerable to an authorization bypass IDOR because the frontend calendar lightbox endpoint /ccm/calendar/viewevent/bID/occurrenceid does not verify that the caller is permitted to view the calendar that owns the requested event occurrence. The controller loads the...

CVE-2026-18121

Concrete CMS 9.5.2 and below is vulnerable to an authorization bypass (IDOR) in the Calendar block's frontend event dialog (/ccm/calendar/view_event/{bID}/{occurrence_id}). The controller loads the event occurrence from an attacker-supplied sequential identifier without verifying that the caller ...

CVE-2026-84432 Concrete CMS 9 through 9.5.2 is vulnerable to CSRFin the Boards custom slot dialog controller

Concrete CMS 9 through 9.5.2 did not validate an anti-CSRF token in the Boards custom slot dialog controller concrete/controllers/dialog/board/customslot.php saveTemplate action. The action created a boardslotproxy Block and dispatched an AddCustomSlotToBoardCommand against a board instance while...

GO-2026-6353 SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content in github.com/siyuan-note/siyuan/kernel

SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content in github.com/siyuan-note/siyuan/kernel...

GO-2026-6395 SiYuan: Missing publish-access filter on getAttributeViewKeysByID discloses database column schema, plus two unscoped block-ID enumeration oracles (publish mode) in github.com/siyuan-note/siyuan/kernel

SiYuan: Missing publish-access filter on getAttributeViewKeysByID discloses database column schema, plus two unscoped block-ID enumeration oracles publish mode in github.com/siyuan-note/siyuan/kernel...

GO-2026-6404 SiYuan: Missing publish-access filter on getBlockAttrs and batchGetBlockAttrs discloses block attributes (name, alias, memo, custom fields) of protected documents in github.com/siyuan-note/siyuan/kernel

SiYuan: Missing publish-access filter on getBlockAttrs and batchGetBlockAttrs discloses block attributes name, alias, memo, custom fields of protected documents in github.com/siyuan-note/siyuan/kernel...

WordPress WPMK Block plugin <= 1.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting vulnerability

Authenticated Contributor+ Stored Cross-Site Scripting vulnerability discovered by zakaria in WordPress Plugin WPMK Block versions = 1.0.1...

PYSEC-2026-3879 Open WebUI: Any authenticated user can hang the server via a cyclic chat message history

Summary Chat histories are stored as an unvalidated JSON object. The walk that reconstructs a chat's message chain detected repeats using each message's own id field while moving through the history by map key, so a message that simply omitted id was never recorded as visited. A history whose...

EUVD-2026-75188

Open WebUI: Any authenticated user can hang the server via a cyclic chat message history...

github.com/gohugoio/hugo: Hugo: Stored Cross-Site Scripting via unescaped code-fence attribute values

A flaw was found in Hugo's default fenced-code-block renderer. This vulnerability allows a remote attacker to inject arbitrary script code into the rendered HTML by providing specially crafted input in the code-fence info string. Due to improper escaping of attribute values, a malicious quote can...

CVE-2026-88002

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.1, the message-chain reconstruction helper in backend/openwebui/utils/misc.py advanced through a chat history by map key but tracked visited entries using each message body's optional id...

CVE-2026-88002

Open WebUI (self-hosted AI platform), versions 0.5.0 through 0.11.1 , is affected by a denial-of-service vulnerability in the message-chain reconstruction helper in backend/open_webui/utils/misc.py. The helper advanced through chat history by map key but tracked visited entries using each message...

CVE-2026-79322

SQL injection in the RelatedProduct block in Mageplaza Blog for Magento 2 mageplaza/magento-2-blog-extension through 4.3.2 allows remote unauthenticated attackers to execute arbitrary SQL commands and read arbitrary database contents via the id parameter to /mpblog/post/view...

DRUPAL-CONTRIB-2026-137

The Feed Block module provides a block content type that displays items pulled from a remote RSS/Atom feed. The module does not sufficiently validate or sanitize the RSS feed it generates, resulting in a stored cross-site scripting XSS vulnerability...

kernel: i2c: stub: Reject I2C block transfers with invalid length

A flaw was found in the Linux kernel's i2c-stub driver. A local user with access to the /dev/i2c- device can exploit this vulnerability by issuing an I2C System Management Bus SMBus input/output control ioctl command with a specially crafted block transfer length. This invalid length can cause th...

kernel: i2c: stub: Reject I2C block transfers with invalid length

A flaw was found in the Linux kernel's i2c-stub driver. A local user with access to the /dev/i2c- device can exploit this vulnerability by issuing an I2C System Management Bus SMBus input/output control ioctl command with a specially crafted block transfer length. This invalid length can cause th...

kernel: i2c: stub: Reject I2C block transfers with invalid length

A flaw was found in the Linux kernel's i2c-stub driver. A local user with access to the /dev/i2c- device can exploit this vulnerability by issuing an I2C System Management Bus SMBus input/output control ioctl command with a specially crafted block transfer length. This invalid length can cause th...

EUVD-2026-74282

Concrete CMS below 9.5.3 registered view assets for every sub-block of a Stack, Container, or layout area without checking whether the requesting user could view that sub-block. An unauthenticated visitor could recover configuration values emitted by a restricted sub-block's asset registration —...

The vulnerability of the bdev_cache_init() function in the block/bdev.c module, which supports the block-level kernel in the Linux operating system, allows a hacker to cause a service failure.

The vulnerability of the bdevcacheinit function in the block/bdev.c module, which supports the block-level kernel in Linux operating systems, is related to the pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the bio_integrity_map_user() function in the block/bio-integrity.c module, which supports the block-level kernel in the Linux operating system, allows a hacker to trigger a service failure.

The vulnerability of the biointegritymapuser function in the block/bio-integrity.c module, which supports the block-level kernel in the Linux operating system, is related to the pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...