Security Updates for Microsoft Office Products (May 2026)

The Microsoft Office Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. CVE-2026-40358 - Heap-based buffer overflow in Microsoft Office allows an...

Security Updates for Microsoft Office Online Server (May 2026)

The Microsoft Office Online Server or Office Web Apps installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities: - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. CVE-2026-40359 -...

PT-2026-40230

Improper access control in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally...

VulnCheck KEV: CVE-2025-32818

A Null Pointer Dereference vulnerability in the SonicOS SSLVPN Virtual office interface allows a remote, unauthenticated attacker to crash the firewall, potentially leading to a Denial-of-Service DoS condition...

PT-2026-41171

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.3 Description Open WebUI renders user-uploaded Office files, such as Excel and DOCX, as HTML using the @html directive without applying DOMPurify sanitization. This lack of sanitization allows for Stored...

Cross-site Scripting (XSS)

Overview prestashop/prestashop is an Open Source e-commerce platform, committed to providing the best shopping cart experience for both merchants and customers. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Customer Service view process. An attacker can...

GHSA-W9F3-QC75-QGX9 PrestaShop has a stored XSS executable in customer service view

Impact This is a stored Cross-site Scripting XSS vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee open...

PrestaShop has a stored XSS executable in customer service view

Impact This is a stored Cross-site Scripting XSS vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee open...

SUSE CVE-2026-4430

Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7...

PT-2026-39239

Name of the Vulnerable Software and Affected Versions PrestaShop versions prior to 8.2.6 PrestaShop versions prior to 9.1.1 Description A stored Cross-site Scripting XSS issue exists in the back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form using ...

Exploits and vulnerabilities in Q1 2026

During Q1 2026, the exploit kits leveraged by threat actors to target user systems expanded once again, incorporating new exploits for the Microsoft Office platform, as well as Windows and Linux operating systems. In this report, we dive into the statistics on published vulnerabilities and...

EUVD-2026-28327

Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7...

CVE-2026-4430 Heap Buffer Overflow in AgileEngine

Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7...

CVE-2026-4430

CVE-2026-4430 is an out-of-bounds write in LibreOffice triggered by opening OOXML documents with malformed encryption parameters. Affected releases: LibreOffice 26.2 before 26.2.3 and 25.8 before 25.8.7. Debian security advisory DSA-6251-1 confirms a buffer overflow could cause an out-of-bounds w...

[SECURITY] Fedora 43 Update: dovecot-2.4.3-2.fc43

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. The SQL drivers and authentication plug-ins are in their subpackages...

GHSA-RM4C-XJ6X-49MW Gotenberg has a Server-Side Request Forgery (SSRF) Issue

Summary The SSRF hardening shipped in v8.31.0 only covers outbound URLs that Gotenberg's Go code handles — Chromium asset fetches, webhook delivery, and download-from. The LibreOffice conversion endpoint /forms/libreoffice/convert passes uploaded documents directly to LibreOffice without inspecti...

PT-2026-38382

Name of the Vulnerable Software and Affected Versions Gotenberg versions 8.31.0 and earlier Description A Server-Side Request Forgery SSRF issue exists in the LibreOffice conversion endpoint "/forms/libreoffice/convert". While some SSRF hardening is present in the Go code, the application passes...

KLA91029 OSI vulnerability in Microsoft Office

An information disclosure vulnerability was found in Microsoft Office. Malicious users can exploit this vulnerability to obtain sensitive information, bypass security restrictions. Original advisories CVE-2026-33823 Exploitation Related products Microsoft-Teams-for-Desktop CVE list CVE-2026-33823...

JLSEC-2026-428 When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a...

When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new target host...

CVE-2026-7670

A flaw has been found in Jinher OA 1.0. The affected element is an unknown function of the file /C6/JHSoft.Web.PlanSummarize/UserSel.aspx. This manipulation of the argument DeptIDList causes sql injection. The attack is possible to be carried out remotely. The exploit has been published and may b...