{"id":52238,"date":"2025-06-15T19:07:17","date_gmt":"2025-06-15T19:07:17","guid":{"rendered":""},"modified":"2025-08-07T23:27:51","modified_gmt":"2025-08-08T05:27:51","slug":"cve-2025-31039-unveiling-the-xml-external-entity-reference-vulnerability-in-pixelgrade-category-icon","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-31039-unveiling-the-xml-external-entity-reference-vulnerability-in-pixelgrade-category-icon\/","title":{"rendered":"<strong>CVE-2025-31039: Unveiling the XML External Entity Reference Vulnerability in Pixelgrade Category Icon<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The digital world is a vast, interconnected ecosystem where even the smallest vulnerability can lead to cataclysmic results. One such vulnerability has been found lurking in the Pixelgrade Category Icon, marked by the CVE identification code: CVE-2025-31039. This vulnerability involves improper restriction of XML External Entity (XXE) reference, which opens up a doorway for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5527-critical-vulnerability-exposing-potential-system-compromise-in-tenda-rx3\/\"  data-wpil-monitor-id=\"58720\">potential system compromise<\/a> or data leakage.<br \/>\nThis <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21453-critical-memory-corruption-vulnerability-impacting-multiple-systems\/\"  data-wpil-monitor-id=\"58961\">vulnerability has a significant impact<\/a> on all systems running the Category Icon plugin from Pixelgrade, versions up to and including 1.0.2. It&#8217;s of paramount importance for cybersecurity experts, system administrators, and users alike, as its exploitation can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21469-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"59046\">lead to severe security breaches and potential<\/a> data loss.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-31039<br \/>\nSeverity: Critical (9.1 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21468-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"59064\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1322351286\" 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>Pixelgrade Category Icon | up to 1.0.2<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30220-high-severity-xml-external-entity-xxe-vulnerability-in-geoserver-geotools-and-geonetwork\/\"  data-wpil-monitor-id=\"60578\">vulnerability CVE-2025-31039 is an XML External Entity<\/a> (XXE) vulnerability, which occurs when an application processes XML data containing a reference to an external entity. This can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21462-memory-corruption-vulnerability-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"59100\">lead to disclosure of confidential data<\/a>, denial of service, server-side request forgery, port scanning from the perspective of the machine where the parser is located, and other system impacts.<br \/>\nIn this case, the Pixelgrade Category Icon plugin does not properly restrict the processing of XML <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25022-unauthenticated-access-to-sensitive-information-in-ibm-qradar-suite-and-ibm-cloud-pak\/\"  data-wpil-monitor-id=\"58721\">external<\/a> entities, allowing an attacker to read sensitive data from the system or interact with any back-end or external systems that the application can access.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-126001494\" 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>Below is a conceptual example of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24274-input-validation-issue-exploitable-via-malicious-app-on-macos\/\"  data-wpil-monitor-id=\"59608\">malicious XML payload that could exploit<\/a> this vulnerability:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/pixelgrade-icon HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/xml\n&lt;!DOCTYPE exploit [\n&lt;!ENTITY xxe SYSTEM &quot;file:\/\/\/etc\/passwd&quot;&gt;]&gt;\n&lt;pixelgrade-icon&gt;\n&lt;icon&gt;&amp;xxe;&lt;\/icon&gt;\n&lt;\/pixelgrade-icon&gt;<\/code><\/pre>\n<p>In this hypothetical example, the attacker sends a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5671-critical-buffer-overflow-vulnerability-in-totolink-n302r-plus-http-post-request-handler\/\"  data-wpil-monitor-id=\"59609\">POST request<\/a> with a malicious XML payload. The payload includes an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36049-xml-external-entity-injection-vulnerability-in-ibm-webmethods-integration-server\/\"  data-wpil-monitor-id=\"63437\">external entity<\/a> (`xxe`) that references a sensitive file on the system (`\/etc\/passwd`). The application then processes the XML data, including the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7766-xml-external-entity-attack-on-lantronix-provisioning-manager\/\"  data-wpil-monitor-id=\"68266\">external entity<\/a>, thereby sending the contents of the sensitive file back in the response.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The digital world is a vast, interconnected ecosystem where even the smallest vulnerability can lead to cataclysmic results. One such vulnerability has been found lurking in the Pixelgrade Category Icon, marked by the CVE identification code: CVE-2025-31039. This vulnerability involves improper restriction of XML External Entity (XXE) reference, which opens up a doorway for [&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":[87,101],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-52238","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-dos","attack_vector-ssrf"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/52238","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=52238"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/52238\/revisions"}],"predecessor-version":[{"id":61713,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/52238\/revisions\/61713"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=52238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=52238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=52238"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=52238"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=52238"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=52238"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=52238"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=52238"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=52238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}