PT-2026-31258

Name of the Vulnerable Software and Affected Versions Elfsight Elfsight WhatsApp Chat CC versions through 1.2.0 Description An issue exists in Elfsight Elfsight WhatsApp Chat CC that allows for DOM-Based Cross-Site Scripting XSS. This occurs due to improper neutralization of input during web page...

Microsoft Warns of WhatsApp Attachments Spreading Backdoor on Windows PCs

Microsoft warns of a WhatsApp attachments spreading VBS malware that installs backdoors on Windows PCs, giving hackers remote access and control systems...

WhatsApp Alerts 200 Users After Fake iOS App Installed Spyware; Italian Firm Faces Action

Meta-owned messaging platform WhatsApp said it alerted about 200 users who were tricked into installing a bogus version of its iOS app that was infected with spyware. According to reports from Italian newspaper La Repubblica and news agency ANSA, the vast majority of the targets are located in...

OneUptime 访问控制错误漏洞

OneUptime is a comprehensive open-source solution developed by OneUptime. It is used to monitor and manage your online services. Versions of OneUptime prior to 10.0.42 contained a access control vulnerability. This vulnerability stemmed from the ability to access notification tests and telephone...

WhatsApp on Windows users targeted in new campaign, warns Microsoft

Microsoft researchers found a campaign that abuses WhatsApp attachments to sneak a script onto Windows machines which will lead to the attacker gaining remote control. WhatsApp offers a desktop application for Windows and macOS, which users can synchronize with their mobile devices. Desktop...

Microsoft Warns of WhatsApp-Delivered VBS Malware Hijacking Windows via UAC Bypass

Microsoft is calling attention to a new campaign that has leveraged WhatsApp messages to distribute malicious Visual Basic Script VBS files. The activity, beginning in late February 2026, leverages these scripts to initiate a multi-stage infection chain for establishing persistence and enabling...

Casbaneiro Phishing Targets Latin America and Europe Using Dynamic PDF Lures

A multi-pronged phishing campaign is targeting Spanish-speaking users in organizations across Latin America and Europe to deliver Windows banking trojans like Casbaneiro aka Metamorfo via another malware called Horabot. The activity has been attributed to a Brazilian cybercrime threat actor track...

WhatsApp malware campaign delivers VBScript and MSI backdoors

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Hunting queries 4. Indicators of compromise Microsoft Defender Experts observed a campaign beginning in late February 2026 that uses WhatsApp messages to deliver malicious Visual Basic Script VBS files. Once execute...

WhatsApp malware campaign delivers VBScript and MSI backdoors

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Hunting queries 4. Indicators of compromise Microsoft Defender Experts observed a campaign beginning in late February 2026 that uses WhatsApp messages to deliver malicious Visual Basic Script VBS files. Once execute...

CVE-2026-33143

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

@aokyra/baileys (2.0.6), @arceos/baileys (>=10.0.0, <=10.0.4) +74 more potentially affected by unknown CVE via @shennmine/libsignal-node (0.0.1-security)

@shennmine/libsignal-node NPM version 0.0.1-security is affected by a known vulnerability. The following packages have a transitive dependency on @shennmine/libsignal-node and may be impacted: - @aokyra/baileys 2.0.6 - @arceos/baileys =10.0.0, =2.0.3, =1.0.0, =1.0.0, =1.0.3, =1.0.6, =3.2.4, =2.1....

FBI, CISA warn of Russian hackers hijacking Signal and WhatsApp accounts

In a Public Service Announcement PSA the Federal Bureau of Investigation FBI and the Cybersecurity and Infrastructure Security Agency CISA warn the public about ongoing Russian-linked phishing campaigns that aim to gain access to messaging accounts. Earlier this month we wrote about a large‑scale...

FBI Warns Russian Hackers Target Signal, WhatsApp in Mass Phishing Attacks

Threat actors affiliated with Russian Intelligence Services are conducting phishing campaigns to compromise commercial messaging applications CMAs like WhatsApp and Signal to seize control of accounts belonging to individuals with high intelligence value, the U.S. Cybersecurity and Infrastructure...

CVE-2026-33143

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143 OneUptime: WhatsApp Webhook Missing Signature Verification

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143 OneUptime: WhatsApp Webhook Missing Signature Verification

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

CVE-2026-33143

CVE-2026-33143 (OneUptime) affects OneUptime prior to version 10.0.34. The WhatsApp POST webhook handler at /notification/whatsapp/webhook processes events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC, enabling unauthenticated attackers to forge webhook payloads. Impact includes m...

CVE-2026-33143 OneUptime: WhatsApp Webhook Missing Signature Verification

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler /notification/whatsapp/webhook processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any...

OneUptime 数据伪造问题漏洞

OneUptime is a comprehensive solution developed by OneUptime OpenSource. It is used to monitor and manage your online services. Versions of OneUptime prior to 10.0.34 contained a data manipulation vulnerability. This vulnerability stemmed from the WhatsApp POST webhook processor not verifying the...