ZeroHour

Source: GBHackers

3 stories in the last 3d

WordPress Events Calendar Vulnerabilities Let Hackers Take Over 600,000 Websites

Two unauthenticated RCE flaws (CVSS 9.8) in The Events Calendar WordPress plugin threaten 600,000 sites; patched in 6.17.4.1.

Wordfence Argus disclosed two critical unauthenticated vulnerability chains in The Events Calendar WordPress plugin, tracked as CVE-2026-78006 and CVE-2026-78159, both scoring 9.8 CVSS. CVE-2026-78006 enables PHP object injection leading to RCE via a Lazy_Post_Collection gadget chain, while CVE-2026-78159 abuses Element_Classes::parse_array() to invoke wp_update_user() and reset the admin password. Exploitation works by injecting wp:legacy-widget Gutenberg markup through comments, using WordPress's moderation-preview hash to trigger the block before approval. StellarWP patched both flaws in version 6.17.4.1 after Wordfence's August 2026 disclosure.

Telegram Desktop XSS Vulnerability Lets Attackers Steal Entire Chat Histories

Stored XSS in Telegram Desktop HTML chat exports (CVSS 8.2) could let attacker-controlled inline keyboard buttons steal full chat histories.

ExPatch researchers Denis and Aleksander Rostilov found a stored XSS in Telegram Desktop's HTML chat export pipeline affecting builds before Beta 6.9.4 and Stable 7.0.1. Unsanitized inline keyboard button text becomes executable JavaScript when a user exports a chat and opens the HTML file in a browser, exposing messages, metadata, and local file paths, and enabling phishing overlays. Telegram patched the issue in commit 8457d13a during July 2026; no CVE had been assigned at disclosure time.

GBHackers · 12h agoVulnerability

Nintendo Switch QR Code Vulnerability Lets Nearby Attackers Execute Unauthorized Code

Nintendo patched CVE-2026-82079 (CVSS 8.4), a stack buffer overflow in Switch local wireless pairing enabling nearby attackers to execute code.

Nintendo Switch system update 23.0.0 fixes CVE-2026-82079, a stack-based buffer overflow in local wireless networking abused via the QR code sharing process, including Album's 'Send to Smartphone' and Mario Kart Live pairing. A nearby attacker who scans the displayed QR code can send crafted traffic and use return-oriented programming to achieve arbitrary code execution. CVSS scores are 8.4 (v3.1) and 7.0 (v4.0), both rated High. No in-the-wild exploitation is reported and Switch 2 systems are not affected.