{"id":87143,"date":"2026-06-17T07:09:52","date_gmt":"2026-06-17T07:09:52","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-55138-critical-vulnerability-in-linkjoin-token-ownership-during-password-reset","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55138-critical-vulnerability-in-linkjoin-token-ownership-during-password-reset\/","title":{"rendered":"CVE-2025-55138: Critical Vulnerability in LinkJoin Token Ownership during Password Reset<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2025-55138 vulnerability, a critical flaw in the LinkJoin software, has been identified as a significant cybersecurity threat. This vulnerability could potentially allow unauthorized users to compromise the system or lead to data leakage. The flaw resides in the LinkJoin software’s password reset function and its mishandling of token ownership. This vulnerability is of particular concern to organizations that utilize the LinkJoin software suite, as it can lead to significant data breaches.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-55138
\nSeverity: High (7.4)
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: None
\nImpact: System compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

LinkJoin | Up to 882f196<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The CVE-2025-55138 vulnerability exists due to a flaw in LinkJoin\u2019s handling of token ownership during the password reset process. An attacker can exploit this vulnerability by intercepting the token during the process, thus gaining unauthorized access to the system. This unauthorized access can then be leveraged to compromise the system or lead to data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The vulnerability could potentially be exploited as shown in the conceptual example below:<\/p>\n

POST \/linkjoin\/password_reset HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"reset_token\": \"intercepted_token\", \"new_password\": \"malicious_password\" }<\/code><\/pre>\n
In this example, the attacker has intercepted a reset token and is using it to set a new password, thus gaining unauthorized access to the system.<\/p>\n
Mitigation<\/strong><\/p>\n
Organizations can mitigate the CVE-2025-55138 vulnerability by applying the vendor patch immediately to affected systems. If the patch cannot be applied immediately, the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. However, these measures are not a permanent solution and the vendor patch should be applied as soon as possible to fully secure systems.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-55138 vulnerability, a critical flaw in the LinkJoin software, has been identified as a significant cybersecurity threat. This vulnerability could potentially allow unauthorized users to compromise the system or lead to data leakage. The flaw resides in the LinkJoin software’s password reset function and its mishandling of token ownership. This vulnerability is of […]<\/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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-87143","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t