{"id":76241,"date":"2025-09-26T09:24:30","date_gmt":"2025-09-26T09:24:30","guid":{"rendered":""},"modified":"2025-10-01T23:02:21","modified_gmt":"2025-10-02T05:02:21","slug":"cve-2025-54815-arbitrary-code-execution-via-server-side-template-injection-in-ppress-0-0-9","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54815-arbitrary-code-execution-via-server-side-template-injection-in-ppress-0-0-9\/","title":{"rendered":"<strong>CVE-2025-54815: Arbitrary Code Execution via Server-Side Template Injection in PPress 0.0.9<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The vulnerability dubbed CVE-2025-54815 represents a severe security flaw in version 0.0.9 of PPress, a widely used server-side software. This vulnerability allows potential attackers to execute arbitrary code through server-side template injection (SSTI) using specially crafted themes. It is particularly alarming due to the high severity score of 8.8 out of 10, indicating the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36174-a-critical-file-upload-vulnerability-in-ibm-integrated-analytics-system\/\"  data-wpil-monitor-id=\"86023\">critical nature of the risk it poses to the integrity<\/a>, confidentiality, and availability of the affected systems.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-54815<br \/>\nSeverity: High (CVSS score 8.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9791-critical-vulnerability-in-tenda-ac20-16-03-08-05-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"85058\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-879232141\" 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>PPress | 0.0.9<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This exploit takes advantage of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52122-critical-server-side-template-injection-ssti-vulnerability-in-freeform-plugin-for-craftcms\/\"  data-wpil-monitor-id=\"84031\">Server-Side Template Injection<\/a> (SSTI) vulnerability in PPress 0.0.9. SSTI <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50972-sql-injection-vulnerability-in-abantecart-1-4-2-with-a-high-severity-score\/\"  data-wpil-monitor-id=\"83512\">vulnerabilities occur when an attacker can inject<\/a> input that can be processed by a template engine. In this case, the attacker can manipulate theme files, causing the server to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0074-critical-remote-code-execution-vulnerability-in-sdp-discovery\/\"  data-wpil-monitor-id=\"83587\">execute arbitrary code<\/a>. This can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84213\">lead to a complete system compromise or potential<\/a> data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2311298685\" 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>An attacker might exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8592-wordpress-inspiro-theme-vulnerability-to-cross-site-request-forgery-csrf\/\"  data-wpil-monitor-id=\"85457\">vulnerability by sending a crafted HTTP request<\/a> like the following:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/theme\/upload HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW\n------WebKitFormBoundary7MA4YWxkTrZu0gW\nContent-Disposition: form-data; name=&quot;theme&quot;; filename=&quot;malicious_theme.zip&quot;\nContent-Type: application\/zip\n{ &quot;malicious_payload&quot;: &quot;...&quot; }\n------WebKitFormBoundary7MA4YWxkTrZu0gW--<\/code><\/pre>\n<p>This conceptual example represents a request to upload a malicious theme containing arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22403-remote-code-execution-vulnerability-in-sdp-discovery-cc\/\"  data-wpil-monitor-id=\"83893\">code that is then executed<\/a> by the server.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To protect against this vulnerability, users of PPress 0.0.9 are advised to apply the latest vendor-provided patch which addresses this specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48581-critical-security-flaw-allowing-local-privilege-escalation-in-mainline-installations\/\"  data-wpil-monitor-id=\"87129\">security flaw<\/a>. In the absence of a patch, or as an additional layer of security, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method, helping to detect and block <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1740-excessive-authentication-attempts-vulnerability-in-akinsoft-myrezzta\/\"  data-wpil-monitor-id=\"86774\">attempts to exploit this vulnerability<\/a>. Regular patching and system updates are strongly recommended to prevent becoming a victim of such exploits.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The vulnerability dubbed CVE-2025-54815 represents a severe security flaw in version 0.0.9 of PPress, a widely used server-side software. This vulnerability allows potential attackers to execute arbitrary code through server-side template injection (SSTI) using specially crafted themes. It is particularly alarming due to the high severity score of 8.8 out of 10, indicating the [&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":[],"product":[],"attack_vector":[78,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-76241","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-injection","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76241","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=76241"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76241\/revisions"}],"predecessor-version":[{"id":79973,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76241\/revisions\/79973"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=76241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=76241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=76241"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=76241"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=76241"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=76241"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=76241"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=76241"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=76241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}