{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-31941/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.7,"id":"CVE-2026-31941"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["chamilo","ssrf","cve-2026-31941","lms"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eChamilo LMS, a learning management system, is vulnerable to Server-Side Request Forgery (SSRF) in versions prior to 1.11.38 and 2.0.0-RC.3. This vulnerability resides in the Social Wall feature, specifically the \u003ccode\u003eread_url_with_open_graph\u003c/code\u003e endpoint. By supplying a crafted URL via the \u003ccode\u003esocial_wall_new_msg_main\u003c/code\u003e POST parameter, an authenticated attacker can force the Chamilo LMS server to make arbitrary HTTP requests. This SSRF can be leveraged to probe internal services, perform port scanning on the internal network, and potentially access sensitive cloud instance metadata. The vulnerability was patched in versions 1.11.38 and 2.0.0-RC.3. Defenders should prioritize patching and monitoring for suspicious outbound HTTP requests originating from the Chamilo LMS server.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker authenticates to the Chamilo LMS platform with valid user credentials.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious URL targeting an internal service or resource.\u003c/li\u003e\n\u003cli\u003eThe attacker initiates a POST request to the \u003ccode\u003eread_url_with_open_graph\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eThe POST request includes the crafted URL within the \u003ccode\u003esocial_wall_new_msg_main\u003c/code\u003e parameter.\u003c/li\u003e\n\u003cli\u003eThe Chamilo LMS server, without proper validation, processes the POST request.\u003c/li\u003e\n\u003cli\u003eThe server then makes an HTTP request to the attacker-supplied URL.\u003c/li\u003e\n\u003cli\u003eIf the URL targets an internal service, the attacker may gain unauthorized access or information.\u003c/li\u003e\n\u003cli\u003eSuccessful exploitation allows the attacker to scan internal ports and potentially access cloud instance metadata, leading to further reconnaissance or lateral movement.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this SSRF vulnerability could allow an attacker to gain unauthorized access to internal services and data within the organization\u0026rsquo;s network. An attacker could use this vulnerability to enumerate internal systems, gather sensitive information, and potentially escalate privileges within the network. This could also lead to lateral movement, data exfiltration, or other malicious activities. The severity of the impact depends on the sensitivity of the internal services exposed and the attacker\u0026rsquo;s objectives.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Chamilo LMS to version 1.11.38 or 2.0.0-RC.3 or later to patch CVE-2026-31941.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the impact of potential SSRF attacks.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for POST requests to \u003ccode\u003e/main/social/social_wall/social_wall.ajax.php\u003c/code\u003e with unusual URLs in the \u003ccode\u003esocial_wall_new_msg_main\u003c/code\u003e parameter to detect potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule to detect requests with unusual URLs to \u003ccode\u003esocial_wall.ajax.php\u003c/code\u003e.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-11T12:00:00Z","date_published":"2026-04-11T12:00:00Z","id":"/briefs/2026-04-chamilo-ssrf/","summary":"A Server-Side Request Forgery (SSRF) vulnerability exists in Chamilo LMS versions prior to 1.11.38 and 2.0.0-RC.3, allowing authenticated attackers to make arbitrary HTTP requests, scan internal ports, and access cloud instance metadata via the Social Wall feature.","title":"Chamilo LMS SSRF Vulnerability in Social Wall Feature","url":"https://feed.craftedsignal.io/briefs/2026-04-chamilo-ssrf/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-31941","version":"https://jsonfeed.org/version/1.1"}