{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/zechat-1.5/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.2,"id":"CVE-2018-25339"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Zechat 1.5"],"_cs_severities":["high"],"_cs_tags":["sql-injection","cve","web-application"],"_cs_type":"advisory","_cs_vendors":["Bylancer"],"content_html":"\u003cp\u003eZechat 1.5 is susceptible to a SQL injection vulnerability, identified as CVE-2018-25339, affecting the \u003ccode\u003ev\u003c/code\u003e parameter. This flaw enables unauthenticated attackers to extract sensitive database information by employing time-based blind SQL injection techniques. Successful exploitation allows for the confirmation of the vulnerability and subsequent data exfiltration. The vulnerability was reported to NVD on 2026-05-17. This vulnerability poses a significant risk to organizations utilizing Zechat 1.5 as it allows for the potential compromise of sensitive data without requiring any authentication.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker identifies a Zechat 1.5 instance.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP GET request targeting the vulnerable \u003ccode\u003ev\u003c/code\u003e parameter.\u003c/li\u003e\n\u003cli\u003eThe crafted request includes a SQL injection payload designed for time-based blind injection.\u003c/li\u003e\n\u003cli\u003eThe Zechat application processes the request without proper sanitization of the \u003ccode\u003ev\u003c/code\u003e parameter, leading to execution of the injected SQL code within the database.\u003c/li\u003e\n\u003cli\u003eThe injected SQL code utilizes functions like \u003ccode\u003eSLEEP()\u003c/code\u003e or similar time-delaying functions to introduce artificial delays based on conditional statements.\u003c/li\u003e\n\u003cli\u003eBy observing the response times, the attacker infers the truthiness of the SQL conditions, effectively extracting database information bit by bit.\u003c/li\u003e\n\u003cli\u003eThe attacker repeats the process, refining the SQL injection payloads to extract the desired data, such as usernames, passwords, or other sensitive information.\u003c/li\u003e\n\u003cli\u003eThe attacker exfiltrates the extracted data from the Zechat database.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this SQL injection vulnerability (CVE-2018-25339) can lead to the complete compromise of the Zechat 1.5 database. This includes potential exposure of user credentials, personal information, and other sensitive data stored within the system. The impact includes data breaches, potential financial loss due to compromised information, and reputational damage to the organization.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply available patches or upgrade to a secure version of Zechat to remediate CVE-2018-25339.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect CVE-2018-25339 Exploitation — Zechat SQL Injection\u0026rdquo; to your SIEM to detect exploitation attempts.\u003c/li\u003e\n\u003cli\u003eImplement input validation and sanitization for all user-supplied data, including the \u003ccode\u003ev\u003c/code\u003e parameter, to prevent SQL injection attacks.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious HTTP requests containing SQL injection payloads.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-17T13:20:26Z","date_published":"2026-05-17T13:20:26Z","id":"https://feed.craftedsignal.io/briefs/2026-05-zechat-sql-injection/","summary":"Zechat 1.5 is vulnerable to SQL injection in the v parameter (CVE-2018-25339), allowing unauthenticated attackers to extract database information using time-based blind techniques.","title":"Zechat 1.5 SQL Injection Vulnerability (CVE-2018-25339)","url":"https://feed.craftedsignal.io/briefs/2026-05-zechat-sql-injection/"}],"language":"en","title":"CraftedSignal Threat Feed — Zechat 1.5","version":"https://jsonfeed.org/version/1.1"}