Threat briefs

The Boost plugin for WordPress is vulnerable to PHP Object Injection (CVE-2026-7637) due to deserialization of untrusted input in the STYXKEY-BOOST_USER_LOCATION cookie, potentially leading to arbitrary code execution if a suitable property-oriented programming (POP) chain is present.

The Boost plugin for WordPress is vulnerable to time-based SQL Injection (CVE-2026-9010) via the 'current_url' and 'user_name' parameters in versions up to 2.0.3, allowing unauthenticated attackers to extract sensitive information from the database due to insufficient input sanitization.

TONNET's E-LAN Hybrid Recording System is vulnerable to SQL Injection (CVE-2026-9003), allowing unauthenticated remote attackers to inject arbitrary SQL commands and read database contents.

The Read More & Accordion plugin for WordPress is vulnerable to privilege escalation due to insufficient restrictions on database table writes and data validation during import, allowing authenticated attackers to create administrator accounts.

The Account Switcher plugin for WordPress is vulnerable to privilege escalation (CVE-2026-6456) due to a loose comparison and lack of validation on the `rememberLogin` REST API endpoint, allowing authenticated attackers to gain administrator privileges.

Rsync versions 3.4.2 and prior contain an integer overflow vulnerability (CVE-2026-43618) in the compressed-token decoder, allowing a malicious sender to trigger out-of-bounds memory access on the receiver and disclose sensitive process memory.

The Creative Mail plugin for WordPress is vulnerable to SQL Injection due to insufficient escaping of the 'checkout_uuid' parameter and lack of sufficient preparation on the SQL query in the `has_checkout_consent()` method, allowing unauthenticated attackers to extract sensitive information from the database.

The Easy Elements for Elementor plugin for WordPress is vulnerable to privilege escalation (CVE-2026-7284) due to unrestricted user role assignment during registration, allowing unauthenticated attackers to gain administrator access.

The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file upload (CVE-2026-6555) due to a validation mismatch, allowing unauthenticated attackers to upload malicious PHP files leading to remote code execution.

A command injection vulnerability exists in LiteLLM versions 1.74.2 to < 1.83.7, allowing authenticated users with a valid API key to execute arbitrary OS commands as root via the MCP stdio transport through the `POST /mcp-rest/test/connection` and `POST /mcp-rest/test/tools/list` endpoints, especially in default Docker deployments, and a public exploit is available.

CVE-2026-45585 is a security feature bypass vulnerability in Windows BitLocker, known as 'YellowKey', for which a public proof of concept exists, prompting Microsoft to release mitigation guidance prior to a security update.

CVE-2026-31635, dubbed DirtyDecrypt, is a local privilege escalation vulnerability in the Linux kernel's rxrpc subsystem (rxgk component), allowing an unprivileged user to corrupt page cache and achieve arbitrary file writes, leading to root access on kernels 6.10 to 6.13 with CONFIG_RXGK enabled.

Microsoft disrupted a malware-signing-as-a-service (MSaaS) operation run by Fox Tempest that abused the Azure Artifact Signing service to generate fraudulent code-signing certificates, enabling malware to bypass security controls.

Atlassian released a security advisory on May 19, 2026, addressing vulnerabilities in multiple products including Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira, and Jira Service Management Data Center and Server.

Caddy Defender versions before v0.10.1 are vulnerable to a client IP bypass (CVE-2026-46415) when deployed behind a trusted proxy, allowing blocked clients to bypass Defender's IP-based restrictions.

A server-side request forgery (SSRF) vulnerability exists in `@angular/platform-server` due to improper processing of the request URL by the server-side rendering engine, allowing attackers to redirect relative HTTP requests to attacker-controlled servers, potentially exposing internal APIs or metadata services; patch CVE-2026-46417 immediately.

Between May 11th and May 12th of 2026, a threat actor compromised an npm publish token to publish 18 malicious versions of the '@beproduct/nestjs-auth' package (versions 0.1.2 through 0.1.19) containing payloads from the Mini Shai-Hulud npm supply-chain worm campaign that exfiltrated npm tokens, GitHub PATs/OAuth tokens, AWS credentials, and Vault tokens, impacting developer environments.

camofox-mcp exposed an unauthenticated HTTP MCP endpoint, allowing remote clients to invoke browser-control tools without authentication, potentially leading to unauthorized browser automation and data access.

FileBrowser Quantum is susceptible to CVE-2026-46410, an unauthenticated information disclosure vulnerability, potentially exposing sensitive information such as source code and file paths.

SQLFluff versions prior to 4.2.0 are vulnerable to uncontrolled resource consumption (CVE-2026-46374), allowing an attacker to cause a denial of service by submitting a maliciously crafted, long SQL query.

The dasel selector lexer is vulnerable to an index-out-of-range panic when tokenizing a quoted string that ends with a trailing backslash (e.g., `"\` or `'\`), leading to a process crash if an attacker can control the selector string.

Dasel versions 3.0.0 to 3.3.1 are vulnerable to a denial-of-service attack (CVE-2026-46378) where the selector lexer enters a non-terminating loop when tokenizing an unterminated regex pattern, causing 100% CPU usage on one core, which can be triggered by an attacker-controlled selector/query string.

SillyTavern version 1.17.0 is vulnerable to server-side request forgery (SSRF) via the `/api/search/searxng` route, allowing authenticated low-privilege users to control the `baseUrl` parameter for outbound server-side fetches, potentially disclosing sensitive information from internal HTTP services or cloud metadata endpoints.

A maliciously crafted SQL query with excessive nesting can cause a denial of service by exhausting resources when parsed by SQLFluff versions prior to 4.1.0; version 4.1.0 introduces a configurable recursion limit to mitigate this vulnerability.

An unauthenticated remote peer can exhaust the disk storage of any `@libp2p/kad-dht` node running in server mode by sending an unbounded stream of `PUT_VALUE` messages with crafted keys to bypass validation and cause disk exhaustion.

Coder is vulnerable to a PKCS#7 signature bypass in Azure instance identity (CVE-2026-46354), allowing unauthenticated agent token theft via a forged vmId, enabling access to Git SSH private keys, OAuth access tokens, and workspace secrets.

The Penpot MCP module's ReplServer binds to all interfaces and exposes an unauthenticated /execute endpoint, allowing remote attackers to execute arbitrary code by sending a POST request with JavaScript code, leading to potential information disclosure and command execution.

Dell published security advisories between May 11 and 17, 2026, addressing vulnerabilities in Dell Enterprise Sonic Distribution, Dell Live Optics Collector, Intel 800 Series Ethernet Adapters, Dell PowerEdge with AMD Graphics, and PowerScale InsightIQ, prompting users to apply necessary updates.

The SHub Reaper stealer combines credential theft, wallet hijacking, and document exfiltration with persistent backdoor access on macOS, distributed through fake WeChat and Miro installers while spoofing Apple, Google, and Microsoft to evade detection.

The MCP router exposes an initialize method code path that bypasses the gateway JWT session validator and rewrites the upstream :authority header, gated only by a shared header value, allowing attackers to bypass authorization and access backend services.