About this tag
Cross-site scripting (XSS) vulnerabilities in Microsoft Exchange Server, SharePoint Server, and Siemens SIMATIC S7 PLCs are a recurring theme in recent WindowsForum.com threads. Microsoft's July 2026 security updates addressed multiple critical and important XSS flaws in Exchange Server 2016, 2019, and Subscription Edition, as well as SharePoint Server 2016, 2019, and Subscription Edition. These vulnerabilities, classified under CWE-79, allow attackers to inject malicious scripts into web pages, potentially leading to spoofing or data theft. Siemens also disclosed XSS issues in its SIMATIC S7 industrial controllers. Administrators are urged to prioritize patching, especially for internet-facing systems like Outlook on the web and SharePoint.
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    CVE-2026-55008: Install July Exchange Updates for Critical XSS

    Microsoft has issued security updates for CVE-2026-55008, a critical Microsoft Exchange Server spoofing vulnerability scored 9.6 under CVSS 3.1. The bug, published July 14, affects supported patch channels for Exchange Server 2016 CU23, Exchange Server 2019 CU14 and CU15, and Exchange Server...
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    CVE-2026-55135: Patch SharePoint XSS With July 14 Updates

    CVE-2026-55135 affects Microsoft SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition, allowing an authenticated attacker to inject script content that can be used to spoof information presented to another user. Microsoft fixed the flaw in its July 14, 2026...
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    CVE-2026-55126: Patch SharePoint XSS With July KB5002891 Updates

    CVE-2026-55126 exposes supported on-premises editions of Microsoft SharePoint Server to a cross-site scripting attack that can let an authenticated user spoof content and potentially capture sensitive information. Microsoft released fixes on July 14, 2026, for SharePoint Server 2016, SharePoint...
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    CVE-2026-55030 SharePoint XSS Fixed in July 2026 Updates

    Microsoft has fixed CVE-2026-55030, an authenticated cross-site scripting vulnerability affecting SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. The flaw can let an attacker place deceptive content into a SharePoint page, but exploitation requires a...
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    CVE-2026-55019: Install July Updates to Fix SharePoint XSS

    Microsoft patched CVE-2026-55019 on July 14, 2026, closing a SharePoint Server cross-site scripting flaw that could let an authenticated attacker spoof content shown to another user. The vulnerability affects supported on-premises editions of SharePoint Server and requires administrators to...
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    CVE-2026-45465 SharePoint Spoofing Fix: Patch On-Prem Servers Promptly

    Microsoft published CVE-2026-45465 on June 9, 2026, describing an Important-rated Microsoft SharePoint Server spoofing vulnerability in supported on-premises SharePoint Server editions, caused by cross-site scripting and fixed through security updates for Subscription Edition, SharePoint Server...
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    CVE-2026-45468 SharePoint XSS Spoofing: Patch Priority for Server 2016/2019

    Microsoft disclosed CVE-2026-45468 on June 9, 2026, as an Important-rated Microsoft SharePoint Server spoofing vulnerability caused by cross-site scripting, affecting SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Enterprise Server 2016, with security updates...
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    Siemens SIMATIC S7 XSS: JavaScript Injection via PLC Web Admin Pages

    Siemens and CISA warned on May 12 and May 14, 2026, respectively, that the web server in a broad set of SIMATIC S7 PLCs contains three cross-site scripting vulnerabilities affecting S7-1500, ET 200SP, Drive Controller, Software Controller, SIPLUS, and PLCSIM Advanced products. The flaw class is...
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    Schneider Modicon PLC Hover XSS: Fix Firmware, Harden Webserver, Reduce Exposure

    Schneider Electric’s Modicon PLC family is back in the spotlight with a web-facing cross-site scripting issue that affects M241, M251, M258, and LMC058 controllers, and the remediation path is straightforward but operationally significant: update firmware, harden the webserver, and reduce...
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    Urgent XSS Patch for Azure DevOps Server CVE-2026-21512

    Microsoft has assigned CVE‑2026‑21512 to a cross‑site scripting (XSS) vulnerability affecting Azure DevOps Server, and while the vendor entry confirms the issue exists, public technical details remain deliberately limited—leaving administrators with a clear remediation imperative but with...
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    CVE-2024-6485 Bootstrap Button XSS in Bootstrap 3

    A critical Cross‑Site Scripting (XSS) flaw was assigned CVE‑2024‑6485 after researchers discovered that Bootstrap’s legacy Button plugin improperly handles the data-loading-text / data-*-text attributes, allowing attacker‑controlled HTML (including script) to be rendered when a button enters its...
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    WebCTRL Open Redirect and XSS Flaws: Upgrade to WebCTRL 9.0

    Automated Logic’s WebCTRL Premium Server has been confirmed vulnerable to an open redirect and a cross‑site scripting (XSS) flaw — tracked as CVE‑2024‑8527 and CVE‑2024‑8528 — that together can be abused to phish operators, deliver malicious scripts into administrator browsers, and form...
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    Rockwell DataMosaix Private Cloud patch fixes MFA bypass and XSS CVEs

    Rockwell Automation has published fixes for two high‑impact vulnerabilities in FactoryTalk DataMosaix Private Cloud — an MFA bypass that can produce a valid login token without a password (CVE‑2025‑11084) and a persistent cross‑site scripting flaw that can enable account takeover or credential...
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    CVE-2025-55321: Azure Monitor XSS Spoofing in Log Analytics (High)

    Microsoft has published a high‑severity advisory for CVE‑2025‑55321: a cross‑site scripting (CWE‑79) flaw in Azure Monitor Log Analytics that can be abused by a privileged user to inject and render attacker‑controlled content in the Azure Monitor web UI, enabling spoofing of telemetry...
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    CVE-2025-53728: Patch Dynamics 365 On-Prem Info Disclosure Now

    Below is a plain‑language, technical, and operational writeup you can use to brief engineers, SOC, and leadership about CVE‑2025‑53728 (Microsoft Dynamics 365 — on‑premises) and what to do next. I’ve cited the vendor advisory you provided and independent sources where available, and I’ve...
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    CVE-2025-49745: XSS in Dynamics 365 On-Premises — Patch & Mitigate

    Microsoft has assigned CVE-2025-49745 to a cross‑site scripting (XSS) vulnerability affecting Microsoft Dynamics 365 (on‑premises), describing an issue where improper neutralization of input during web page generation can allow an attacker to perform spoofing over a network against on‑premises...
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    CISA Issues Critical ICS Vulnerabilities Advisories: Protect Industrial Systems Now

    The Cybersecurity and Infrastructure Security Agency (CISA) has recently issued nine advisories addressing critical vulnerabilities in various Industrial Control Systems (ICS). These advisories highlight potential risks that could significantly impact industrial operations across sectors such as...
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    Windows 11 24H2: Upgrading to JScript9Legacy for Enhanced Security

    In a significant move to bolster system security, Microsoft has announced that starting with Windows 11 version 24H2, the legacy JScript engine will be replaced by JScript9Legacy as the default scripting engine. This transition aims to address longstanding vulnerabilities associated with the...
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    Critical EVLink WallBox Vulnerabilities: Securing Home Charging Amid Increasing Cyber Threats

    As the global adoption of electric vehicles (EVs) surges, the landscape of home and workplace charging solutions is experiencing unprecedented scrutiny—especially regarding cybersecurity. The Schneider Electric EVLink WallBox, once a popular choice for reliable home EV charging, has recently...
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    Schneider Electric Modicon Controllers Vulnerabilities: Risks, Impacts & Mitigation

    When news of new vulnerabilities in Schneider Electric’s Modicon Controllers emerges, the industrial and Windows enterprise community pays close attention. These controllers are not niche devices; they comprise critical automation platforms used globally across sectors such as energy, critical...