All news with #cross site scripting tag

🔒 Ivanti has released a critical patch for an unauthenticated Cross-Site Scripting (XSS) flaw in EPM that can allow attackers to inject malicious device scan data via the incoming API and execute JavaScript in administrator dashboards, enabling full admin-session takeover. The vendor shipped EPM 2024 SU4 SR1 to address CVE-2025-10573 (CVSS 9.6) and other arbitrary-code and file-write vulnerabilities; Ivanti said it had not observed customer exploitation at disclosure.

⚠️ Festo SE & Co. KG's LX Appliance contains a cross-site scripting (XSS) vulnerability tied to the video.js library (CVE-2021-23414) that can allow crafted course content to execute scripts in high-privilege user sessions. The issue affects LX Appliance versions prior to June 2023 and has a CVSS v3.1 base score of 6.1. Festo coordinated disclosure with CERT@VDE and published advisory FSA-202301. Administrators should update affected appliances and apply recommended network isolation and secure remote access controls.

⚠️ CISA has added an actively exploited cross-site scripting flaw, CVE-2021-26829, to its Known Exploited Vulnerabilities catalog after reports of operational abuse against OpenPLC ScadaBR. The XSS affects Windows 1.12.4 and Linux 0.9.1 via system_settings.shtm and was used to deface HMI pages and disable logs. Federal civilian agencies must remediate by December 19, 2025; operators should apply vendor fixes, change default credentials, enable logging and monitor for web-layer manipulation and outbound callbacks.

🔒 Rockwell Automation disclosed multiple vulnerabilities in FactoryTalk DataMosaix Private Cloud that can enable MFA bypass and persistent cross-site scripting. The issues, tracked as CVE-2025-11084 and CVE-2025-11085, affect 7.11 and selected 8.x releases and carry CVSS v4 scores up to 8.6, indicating high severity. Rockwell has released patches and CISA advises applying updates, minimizing network exposure, and isolating control networks to reduce remote exploitation risk.

⚠️ Advantech DeviceOn/iEdge versions 2.0.2 and earlier contain multiple remotely exploitable vulnerabilities, including XSS and several path-traversal flaws assigned CVE-2025-64302, CVE-2025-62630, CVE-2025-59171, and CVE-2025-58423. Successful exploitation may lead to denial-of-service, arbitrary file disclosure, or remote code execution with system-level permissions. CISA notes the products are EOL and recommends upgrading to DeviceOn, isolating devices from the internet, and using secure remote access methods to reduce risk.

🔒 Siemens released security updates for SiPass integrated to address four vulnerabilities—an Accusoft ImageGear heap-based buffer overflow, stored cross-site scripting, an authorization bypass via user-controlled keys, and recoverable password storage. Exploitation could enable account compromise, data manipulation, impersonation, or arbitrary code execution on affected servers. Siemens recommends updating to V3.0, restricting access to trusted personnel, and avoiding untrusted image uploads; CISA advises isolating devices and using secure remote access.

⚠️ CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog: CVE-2025-27915, a cross-site scripting (XSS) flaw in Synacor Zimbra Collaboration Suite (ZCS). CISA notes that XSS remains a common attack vector that can enable credential theft, session hijacking, and distribution of malicious content. Under BOD 22-01, Federal Civilian Executive Branch agencies must remediate KEV items by prescribed due dates. CISA urges all organizations to prioritize timely remediation and reduce exposure.

⚠️ Hitachi Energy reports multiple vulnerabilities in the MSM product that are exploitable remotely with low attack complexity. An XSS flaw in the EmbedThis GoAhead goform/formTest endpoint (name parameter) can allow HTML injection, while an assertion in open62541's fuzz_binary_decode can cause a crash. CVE-2023-53155 (CVSS 7.2) and CVE-2024-53429 (CVSS 7.5) are assigned. Vendors and CISA recommend disconnecting affected devices from internet-facing networks and following product-specific guidance.

⚠️ Schneider Electric disclosed a cross-site scripting flaw (CWE-79) affecting numerous Altivar drives, the ATVdPAC communication module, and the ILC992 InterLink Converter. Tracked as CVE-2025-7746, the issue is remotely exploitable with low attack complexity and can allow an attacker to read or modify data via device web interfaces. Schneider has released a fix for the ATVdPAC (Version 25.0) and recommends disabling webservers when not needed, segmenting networks, blocking HTTP/port 80 access, and using VPNs until further patches are provided.

🛡️ MSRC reports that Cross-Site Scripting (XSS) remains a persistent threat across legacy portals and modern single-page applications, with hundreds of cases triaged in the past year. Between July 2024 and July 2025, MSRC mitigated over 970 XSS cases and awarded more than $900,000 in bounties, spanning low-impact self-XSS to zero-click critical exploits. The post describes MSRC’s severity matrix that combines data classification and exploit conditions, outlines servicing scope and exclusion criteria, and publishes a practical submission checklist. Developers and researchers are encouraged to adopt context-aware encoding, Content Security Policy (CSP), and secure-by-default frameworks to reduce exposure.

🔒 This article explains how web cookies work, their classifications, and why session IDs are particularly valuable to attackers. It outlines common attack methods — including session sniffing over HTTP, cross‑site scripting (XSS), cross‑site request forgery (CSRF), and predictable session IDs — and describes specialized tracking like supercookies and evercookies. Practical advice for users and developers covers HTTPS, browser updates, cookie management, two‑factor authentication, cautious use of public Wi‑Fi, and preferring essential cookies only.

🔒 MSRC presents a deep dive into misconfigured postMessage handlers across Microsoft services and the systemic risk posed by overly permissive trust models. The report, authored by Jhilakshi Sharma on August 25, 2025, documents token exfiltration, XSS, and cross-tenant impact in real-world case studies including Bing Travel, web.kusto.windows.net, and Teams apps. It summarizes mitigations such as removing vulnerable packages, tightening Teams app manifests, enforcing strict origin checks for postMessage, and applying CSP constraints to reduce attack surface.