{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/admidio--5.0.11/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.5,"id":"CVE-2026-69091"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Admidio (\u003c 5.0.11)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Admidio"],"content_html":"\u003cp\u003eAdmidio versions prior to 5.0.11 are susceptible to an authentication bypass vulnerability within the forum module. This flaw manifests when the application is configured in 'login-only' mode. The access control logic implemented in 'modules/forum.php' fails to correctly validate the authentication state before serving content. Consequently, unauthenticated attackers can craft requests to the forum module using specific read-only parameters to access and exfiltrate forum topics and user posts. This vulnerability (CVE-2026-69091) poses a significant risk to organizations relying on Admidio for internal or sensitive community communications, as it allows for unauthorized data access without requiring valid credentials.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker performs reconnaissance to identify Admidio instances configured in 'login-only' mode.\u003c/li\u003e\n\u003cli\u003eAttacker probes the target web application to verify the presence of the 'modules/forum.php' endpoint.\u003c/li\u003e\n\u003cli\u003eAttacker crafts an HTTP request targeting 'modules/forum.php' while ensuring the application context triggers the vulnerable logic path.\u003c/li\u003e\n\u003cli\u003eAttacker injects specific read-only parameters into the request query or body to bypass existing access controls.\u003c/li\u003e\n\u003cli\u003eThe server-side code in 'modules/forum.php' fails to verify the attacker's session or authentication status.\u003c/li\u003e\n\u003cli\u003eThe server processes the request and returns the requested forum topics and posts in the HTTP response.\u003c/li\u003e\n\u003cli\u003eThe attacker iterates through available forum threads to perform unauthorized data exfiltration.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows an unauthenticated attacker to view private forum topics and user posts that were intended to be restricted to logged-in users. This results in the unauthorized exposure of sensitive internal communications or community data.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cp\u003ePrioritized actions for detection and remediation:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Admidio instances to version 5.0.11 or later immediately to patch the vulnerable access control logic in 'modules/forum.php'.\u003c/li\u003e\n\u003cli\u003eDeploy the provided web server detection rule to identify attempted exploitation of CVE-2026-69091.\u003c/li\u003e\n\u003cli\u003eReview web server access logs for anomalous, high-volume requests directed at 'modules/forum.php' from external IP addresses.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-08-03T16:06:38Z","date_published":"2026-08-03T16:06:38Z","id":"https://feed.craftedsignal.io/briefs/2026-08-admidio-auth-bypass/","summary":"Admidio versions prior to 5.0.11 contain an authentication bypass vulnerability in the forum module, allowing unauthenticated remote attackers to access sensitive forum content.","title":"Authentication Bypass Vulnerability in Admidio Forum Module","url":"https://feed.craftedsignal.io/briefs/2026-08-admidio-auth-bypass/"}],"language":"en","title":"CraftedSignal Threat Feed - Admidio (\u003c 5.0.11)","version":"https://jsonfeed.org/version/1.1"}