#remote-code-execution

#remote-code-execution

[In] ShowDoc version before 2.8.7, an unrestricted and unauthenticated file upload issue is found and [an] attacker is able to upload a web shell and execute arbitrary code on server.

This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device.

A malicious unauthenticated actor may exploit this issue to execute arbitrary commands which may lead to remote code execution in VMware Aria Operations while support-assisted product migration is in progress. CISA added CVE-2026-22719 to its Known Exploited Vulnerabilities (KEV) catalog on Tuesday, instructing federal agencies to address it by March 24.

The On-Box Anomaly detection framework should only be reachable by other internal processes over the internal routing instance, but not over an externally exposed port. With the ability to access and manipulate the service to execute code as root a remote attacker can take complete control of the device.

According to CISA, Gardyn products were affected by two critical and two high-severity vulnerabilities. One of the critical flaws, tracked as CVE-2025-29631, is a command injection issue that can be exploited to execute arbitrary OS commands on the targeted device. The second critical vulnerability, CVE-2025-1242, is related to the exposure of hardcoded admin credentials that can be used to gain full control of the Gardyn IoT Hub.

An attacker could exploit the flaw via crafted UPnP SOAP requests to execute OS commands on a vulnerable device. It is important to note that WAN access is disabled by default on these devices, and the attack can be carried out remotely only if both WAN access and the vulnerable UPnP function have been enabled.

The Microsoft Defender team says that the attacker created fake web app projects built with Next.js and disguised them as coding projects to share with developers during job interviews or technical assessments. The researchers initially identified a repository hosted on the Bitbucket cloud-based Git-based code hosting and collaboration service. However, they discovered multiple repositories that shared code structure, loader logic, and naming patterns.

Google credits security researcher Shaheen Fazim with reporting the exploit to Google. The dude's LinkedIn says he's a professional bug hunter, and I'd say he deserves the highest possible bug bounty for finding something that a government agency is saying "in CSS in Google Chrome before 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page."

CVE-2025-65717 (CVSS score: 9.1) - A vulnerability in Live Server that allows attackers to exfiltrate local files, tricking a developer into visiting a malicious website when the extension is running, causing JavaScript embedded in the page to crawl and extract files from the local development HTTP server that runs at localhost:5500, and transmit them to a domain under their control. (Remains unpatched)

Microsoft has fixed a serious security vulnerability affecting Markdown files in Notepad. In the company's Tuesday patch notes, Microsoft says a bad actor could carry out a remote code execution attack by tricking users "into clicking a malicious link inside a Markdown file opened in Notepad," as reported earlier by The Register. Clicking the link would "launch unverified protocols," allowing attackers to remotely load and execute malicious files on a victim's computer, according to the patch notes.

Claude Desktop Extensions, recently renamed MCP Bundles, are packaged applications that extend the capabilities of Claude Desktop using the Model Context Protocol, a standard way to give generative AI models access to other software and data. Stored as .dxt files (with Anthropic transitioning the format to .mcpb), they are ZIP archives that package a local MCP server alongside a manifest.json file describing the extension's capabilities.

LayerX researchers found that a single malicious Google Calendar event can trigger remote code execution on Claude Desktop systems, enabling silent takeover at scale. "If exploited by a bad actor, even a benign prompt ("take care of it"), coupled with a maliciously worded calendar event, is sufficient to trigger arbitrary local code execution that compromises the entire system," said LayerX researchers in their analysis.

Attackers are actively exploiting a critical vulnerability in React Native's Metro server to infiltrate development environments. The vulnerability, CVE-2025-11953, allows malicious actors to execute code on Windows and Linux systems via exposed development servers. Metro is React Native's default JavaScript bundler during application development and testing. In many configurations, this server runs locally, but by default, Metro can also bind to external network interfaces. This makes HTTP endpoints available that are intended for development. It is precisely this functionality that now constitutes an attack vector,

Cybersecurity company VulnCheck said it first observed exploitation of CVE-2025-11953 (aka Metro4Shell) on December 21, 2025. With a CVSS score of 9.8, the vulnerability allows remote unauthenticated attackers to execute arbitrary operating system commands on the underlying host. Details of the flaw were first documented by JFrog in November 2025. Despite more than a month after initial exploitation in the wild, the "activity has yet to see broad public acknowledgment," it added.

The vulnerability, tracked as CVE-2026-24423, carries a CVSS score of 9.3 out of 10.0. "SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method," according to a description of the flaw in CVE.org. "The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS [operating system] command. This command will be executed by the vulnerable application."