{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/valeapp/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.3,"id":"CVE-2026-2342"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["ValeApp"],"_cs_severities":["critical"],"_cs_tags":["web-application","xss","cve","critical-vulnerability"],"_cs_type":"advisory","_cs_vendors":["OceanicSoft Informatics Systems Ltd."],"content_html":"\u003cp\u003eA critical stored cross-site scripting (XSS) vulnerability, identified as CVE-2026-2342, has been discovered in OceanicSoft Informatics Systems Ltd.'s ValeApp. This flaw affects all versions of ValeApp through September 7, 2026. The vulnerability stems from improper neutralization of input during web page generation (CWE-79), which allows an unauthenticated attacker to inject arbitrary client-side scripts into the application. These scripts are then persistently stored and executed within the web browsers of other legitimate users who access the affected pages. This enables attackers to bypass access controls, steal session cookies, hijack user accounts, or deface web content. The vulnerability has been assigned a CVSS v3.1 Base Score of 9.3, classifying it as CRITICAL. Notably, the vendor, OceanicSoft Informatics Systems Ltd., was contacted prior to public disclosure but did not provide a response, leaving affected systems potentially exposed. Defenders must prioritize detection and mitigation to prevent client-side compromise.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker crafts a malicious JavaScript payload designed to perform actions such as stealing cookies, redirecting users, or defacing content.\u003c/li\u003e\n\u003cli\u003eThe attacker sends an HTTP POST request to a vulnerable ValeApp endpoint (e.g., a comment submission form or profile update field), embedding the XSS payload within a parameter.\u003c/li\u003e\n\u003cli\u003eThe ValeApp application, due to improper input sanitization and encoding as described by CVE-2026-2342 (CWE-79), stores the malicious script directly into its backend database without neutralization.\u003c/li\u003e\n\u003cli\u003eA legitimate user, browsing ValeApp, navigates to a page within the application that retrieves and displays the previously injected and stored malicious content.\u003c/li\u003e\n\u003cli\u003eThe victim's web browser renders the vulnerable page, and the injected malicious JavaScript executes in the context of the victim's domain and session.\u003c/li\u003e\n\u003cli\u003eThe executed script performs its malicious function, such as exfiltrating the victim's session cookies to an attacker-controlled server, redirecting the victim to a phishing site, or modifying the displayed web content.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eThe successful exploitation of CVE-2026-2342 allows an unauthenticated attacker to execute arbitrary JavaScript in the context of a victim's browser session. This can lead to various severe consequences, including session hijacking, enabling attackers to take over user accounts without credentials; data exfiltration of sensitive information displayed or accessible within the user's session; website defacement; or redirection to malicious phishing sites. Given the 'stored' nature, a single injection can affect multiple users over an extended period, potentially compromising a significant number of users or even administrative accounts if they view the compromised content. The critical CVSS v3.1 score of 9.3 underscores the severe risk this vulnerability poses to the confidentiality and integrity of user data and the overall security of the ValeApp platform.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImplement robust input validation and output encoding for all user-supplied data within ValeApp to prevent script injection as described in CVE-2026-2342 (CWE-79).\u003c/li\u003e\n\u003cli\u003eDeploy Web Application Firewall (WAF) rules to detect and block HTTP requests containing common XSS payloads targeting any ValeApp endpoints, leveraging patterns similar to the Sigma rule provided in this brief.\u003c/li\u003e\n\u003cli\u003eActively monitor web server access logs for patterns indicative of XSS injection attempts, especially those matching the detection logic outlined in the provided Sigma rule.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-09T10:22:12Z","date_published":"2026-07-09T10:22:12Z","id":"https://feed.craftedsignal.io/briefs/2026-07-cve-2026-2342-valeapp-xss/","summary":"A critical stored cross-site scripting (XSS) vulnerability, CVE-2026-2342, in OceanicSoft Informatics Systems Ltd. ValeApp through September 7, 2026, allows an unauthenticated attacker to inject and execute malicious scripts within a victim's browser, leading to session hijacking, data exfiltration, or defacement, with a CVSS v3.1 base score of 9.3.","title":"CVE-2026-2342: Critical Stored XSS in OceanicSoft ValeApp","url":"https://feed.craftedsignal.io/briefs/2026-07-cve-2026-2342-valeapp-xss/"}],"language":"en","title":"CraftedSignal Threat Feed - ValeApp","version":"https://jsonfeed.org/version/1.1"}