{"id":59485,"date":"2025-07-19T06:57:36","date_gmt":"2025-07-19T06:57:36","guid":{"rendered":""},"modified":"2025-09-08T17:19:09","modified_gmt":"2025-09-08T23:19:09","slug":"cve-2025-7619-arbitrary-file-write-vulnerability-in-batchsigncs","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7619-arbitrary-file-write-vulnerability-in-batchsigncs\/","title":{"rendered":"<strong>CVE-2025-7619: Arbitrary File Write Vulnerability in BatchSignCS<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the realm of cybersecurity, there&#8217;s a newly discovered vulnerability that&#8217;s raising concerns among Windows users. The vulnerability, officially named CVE-2025-7619, affects BatchSignCS, a background application developed by WellChoose that&#8217;s used in various capacities on Windows platforms globally. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50067-critical-vulnerability-in-oracle-application-express-allowing-system-takeover\/\"  data-wpil-monitor-id=\"67278\">vulnerability matters because it can lead to a potential system<\/a> compromise or data leakage, creating a serious risk for businesses and individuals alike. It&#8217;s especially worrisome because if a user visits a malicious website while the BatchSignCS application is running, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52808-a-critical-php-remote-file-inclusion-vulnerability-in-realtyelite\/\"  data-wpil-monitor-id=\"65907\">remote attackers can exploit this vulnerability to write arbitrary files<\/a> to any path and potentially execute arbitrary code.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-7619<br \/>\nSeverity: High (8.8 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7027-critical-firmware-vulnerability-enabling-arbitrary-memory-writes-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"69452\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-752224687\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>BatchSignCS | All current versions<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40737-critical-file-path-validation-vulnerability-in-sinec-nms\/\"  data-wpil-monitor-id=\"66632\">vulnerability lies in the BatchSignCS&#8217;s improper validation<\/a> of user-supplied data. If a user visits a malicious website and a particular set of conditions are met, the BatchSignCS application can be tricked into writing <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7340-critical-arbitrary-file-upload-vulnerability-in-ht-contact-form-widget-for-wordpress\/\"  data-wpil-monitor-id=\"66372\">files to arbitrary<\/a> paths on the user&#8217;s system. This means that an attacker could create, modify, or delete any file on the system, potentially leading to arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26074-remote-code-execution-vulnerability-in-orkes-conductor-v3-21-11\/\"  data-wpil-monitor-id=\"66079\">code execution<\/a> if the file is associated with an executable program.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-858828984\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Here&#8217;s a conceptual example of how this vulnerability might be exploited. The attacker sends a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8714-critical-postgresql-vulnerability-allowing-malicious-code-injection-by-superusers\/\"  data-wpil-monitor-id=\"80739\">malicious payload to the vulnerable<\/a> endpoint, which is then processed by the BatchSignCS application.<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/malicious_website HTTP\/1.1\nHost: attacker.com\nContent-Type: application\/json\n{ &quot;file_path&quot;: &quot;C:\\\\Windows\\\\System32\\\\malicious_file.exe&quot;, &quot;file_content&quot;: &quot;BASE64_ENCODED_MALICIOUS_CODE&quot; }<\/code><\/pre>\n<p>In this example, the attacker is attempting to write malicious code to the Windows System32 directory, which houses many of the operating system&#8217;s <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49416-critical-php-remote-file-inclusion-vulnerability-in-fastw3b-llc-fw-gallery\/\"  data-wpil-monitor-id=\"66078\">critical files<\/a>. If successful, this could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54444-unrestricted-file-upload-leading-to-code-injection-in-samsung-electronics-magicinfo-9-server\/\"  data-wpil-monitor-id=\"67277\">lead to the execution of arbitrary code<\/a> with the permissions of the BatchSignCS application.<\/p>\n<p><strong>Mitigation Steps<\/strong><\/p>\n<p>Users are strongly urged to apply the vendor patch as soon as it is available. As an interim measure, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help to mitigate the vulnerability. They can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30327-integer-overflow-vulnerability-in-incopy-leading-to-potential-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"73626\">potentially block or alert on attempts to exploit this vulnerability<\/a>, reducing the risk of a successful attack. Cybersecurity best practices such as keeping software up to date, avoiding untrusted websites, and regularly backing up data should also be followed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the realm of cybersecurity, there&#8217;s a newly discovered vulnerability that&#8217;s raising concerns among Windows users. The vulnerability, officially named CVE-2025-7619, affects BatchSignCS, a background application developed by WellChoose that&#8217;s used in various capacities on Windows platforms globally. This vulnerability matters because it can lead to a potential system compromise or data leakage, creating [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[82],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59485","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=59485"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59485\/revisions"}],"predecessor-version":[{"id":73160,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59485\/revisions\/73160"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59485"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59485"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59485"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59485"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59485"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59485"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}