Microsoft Office Access Control Vulnerability

Microsoft Office is a suite of office software products developed by Microsoft Corporation in the United States. Common components of this product include Word, Excel, Access, PowerPoint, and FrontPage. There is an access control error vulnerability in Microsoft Office. Attackers utilize this...

Microsoft Excel security vulnerabilities

Microsoft Excel is a spreadsheet software within the Office suite developed by Microsoft Corporation. There are security vulnerabilities in Microsoft Excel. Attackers can exploit these vulnerabilities to execute code remotely. The following products and versions are affected: Office Online Server...

Microsoft Excel resource management error vulnerabilities

Microsoft Excel is a spreadsheet software within the Office suite developed by Microsoft Corporation. There is a resource management vulnerability in Microsoft Excel. Attackers can exploit this vulnerability to execute code remotely. The following products and versions are affected: Office Online...

PT-2026-40197

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow allows an unauthorized attacker to execute code locally. This occurs when the software fails to properly handle memory allocation on the heap, whic...

PhpSpreadsheet security vulnerabilities

PhpSpreadsheet is a PHP library developed by PHPOffice, designed for reading and writing spreadsheet files. Vulnerabilities exist in versions prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0 of PhpSpreadsheet. These vulnerabilities stem from the XLSX reader’s...

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 -...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the process that previews Excel file attachments using the sheettohtml function. An attacker can execute arbitrary scripts in the context of the victim's browser by uploading a...

Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

GHSA-JWF8-PV5P-VHMC Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

CVE-2026-42267

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

CVE-2026-42267

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

CVE-2026-42267 Kimai: Formula Injection via tag names in XLSX export

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

CVE-2026-42267 Kimai: Formula Injection via tag names in XLSX export

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

CVE-2026-42267

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

PT-2026-39266

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.8.0 Description Excel file attachments are previewed unsafely. A crafted XLSX file can cause the sheet to html function to embed a Cross-Site Scripting XSS payload into the generated HTML. This content is then...

CVE-2026-42267: Improper Neutralization of Formula Elements in a CSV File

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLEUSER can create a tag with a formula string as its name e.g. =SUM54+51 via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue joi...

Kimai security vulnerabilities

Kimai is a web-based, multi-user time tracking application developed by Kimai’s individual developers. Versions of Kimai from 2.27.0 to 2.54.0 contained security vulnerabilities. These vulnerabilities stemmed from the possibility for any ROLEUSER to create tags with formula strings as names using...

EUVD-2025-209695

HCL BigFix Service Management SM does not adequately sanitize or safely render spreadsheet files CSV, XLS, XLSX before processing or distributing them. An attacker could populate data fields which, when saved to a CSV file, may attempt information exfiltration or other malicious activity when...

CVE-2025-31978

HCL BigFix Service Management SM does not adequately sanitize or safely render spreadsheet files CSV, XLS, XLSX before processing or distributing them. An attacker could populate data fields which, when saved to a CSV file, may attempt information exfiltration or other malicious activity when...

CVE-2025-31978

HCL BigFix Service Management SM does not adequately sanitize or safely render spreadsheet files CSV, XLS, XLSX before processing or distributing them. An attacker could populate data fields which, when saved to a CSV file, may attempt information exfiltration or other malicious activity when...