{"id":"CVE-2026-80428","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-80428","generatedAt":"2026-10-31T02:43:27.314Z","title":"ILIAS before versions 9.22, 10.10, and 11.3 contains an unauthenticated PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting serialized objects through the LTI authentication endpoint and…","description":"ILIAS before versions 9.22, 10.10, and 11.3 contains an unauthenticated PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting serialized objects through the LTI authentication endpoint and triggering deserialization via the Shibboleth back-channel logout endpoint. Attackers can write arbitrary serialized objects into session storage, then exploit an available POP gadget through the logout endpoint's unrestricted deserialization to write attacker-controlled PHP content to a web-accessible path and achieve remote code execution as the web server user.","published":"2026-08-26T16:16:45.000Z","lastModified":"2026-09-30T17:16:50.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-502"],"affected":[],"epss":{"score":0.04666,"percentile":0.91733,"date":"2026-10-29","history":[{"date":"2026-09-24","score":0.04459,"percentile":0.91065}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2026-09-11","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":52682,"kind":"exploit","title":"CVE-2026-80428 Unauthenticated PHP Object Injection via Shibboleth - ILIAS < 9.22_ 10.0 < 10.10_ 11.0 < 11.3 - RCE","url":"https://www.exploit-db.com/exploits/52682","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/remote/52682.py","file":"exploits/multiple/remote/52682.py","published":"2026-09-11","added":"2026-09-11","updated":"2026-09-11","author":"DigiProSec","type":"remote","platform":"multiple","port":null,"verified":false,"codes":["CVE-2026-80428"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is critical, while EPSS rates exploitation at 4.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[{"kind":"exploit","label":"Public exploit","at":"2026-09-11T00:00:00.000Z","detail":{"type":"remote","edbId":52682,"title":"CVE-2026-80428 Unauthenticated PHP Object Injection via Shibboleth - ILIAS < 9.22_ 10.0 < 10.10_ 11.0 < 11.3 - RCE","platform":"multiple","verified":false,"publishedAt":"2026-09-11"},"summary":"Public exploit published in Exploit-DB: CVE-2026-80428 Unauthenticated PHP Object Injection via Shibboleth - ILIAS < 9.22_ 10.0 < 10.10_ 11.0 < 11.3 - RCE (remote, multiple)."}],"references":[{"url":"https://docu.ilias.de/ilias.php?baseClass=illmpresentationgui&obj_id=225630&ref_id=35","source":"disclosure@vulncheck.com"},{"url":"https://docu.ilias.de/ilias.php?baseClass=illmpresentationgui&obj_id=225631&ref_id=35","source":"disclosure@vulncheck.com"},{"url":"https://docu.ilias.de/ilias.php?baseClass=illmpresentationgui&obj_id=225632&ref_id=35","source":"disclosure@vulncheck.com"},{"url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=934","source":"disclosure@vulncheck.com"},{"url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=935","source":"disclosure@vulncheck.com"},{"url":"https://docu.ilias.de/ilias.php?baseClass=ilrepositorygui&cmdNode=wy:ll:6t&cmdClass=ilBlogPostingGUI&cmd=previewFullscreen&ref_id=15821&blpg=936","source":"disclosure@vulncheck.com"},{"url":"https://schweigertit.de/en/advisories/SIT-2026-002.html","source":"disclosure@vulncheck.com"},{"url":"https://schweigertit.de/en/writeups/php-object-injection-shibboleth-logout.html","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80428","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}