High
ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import
Type: advisorySources: OSV
ILIAS before 9.24, 10.12, and 11.5 contains a PHP object injection vulnerability that allows authenticated users with Test creation or import permission to deserialize arbitrary objects via crafted Test archives. Attackers can inject a malicious tst_sequence sequence attribute that is passed to unserialize(), abusing Guzzle or Monolog gadget chains to write PHP files and execute code.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-110761
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 02:16 UTC · Revision 1
Source evidence
ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import
core-osv · Original sourcePublished 14 Oct 2026, 18:47 UTC
ILIAS before 9.24, 10.12, and 11.5 contains a PHP object injection vulnerability that allows authenticated users with Test creation or import permission to deserialize arbitrary objects via crafted Test archives. Attackers can inject a malicious tst_sequence sequence attribute that is passed to unserialize(), abusing Guzzle or Monolog gadget chains to write PHP files and execute code.
osv:CVE-2026-110761
Complete source record
{
"id": "04a2431325307bf63ec8929ab812daedd63a81820669c49c707b1943a4e1c0db",
"url": "https://osv.dev/vulnerability/CVE-2026-110761",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import",
"summary": "ILIAS before 9.24, 10.12, and 11.5 contains a PHP object injection vulnerability that allows authenticated users with Test creation or import permission to deserialize arbitrary objects via crafted Test archives. Attackers can inject a malicious tst_sequence sequence attribute that is passed to unserialize(), abusing Guzzle or Monolog gadget chains to write PHP files and execute code.",
"evidence": "osv:CVE-2026-110761",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-110761",
"aliases": [
"CVE-2026-110761"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ilias-elearning/ilias",
"type": "GIT",
"events": [
{
"introduced": "fde780b71853eddee7c2efc409b2f82335475cb7"
},
{
"fixed": "ba6f1323d3ae1cd77a06b67b7d525b9abb951912"
},
{
"introduced": "cf8158610d18ee0277ee743de16b79d09bcf7af6"
},
{
"fixed": "c59c67f6c3d824d8d995760f12031b6684d6d6dd"
},
{
"introduced": "2151d66e5092fc346bf0bacb49ab7edb468596b3"
},
{
"fixed": "d6a93383d7e0e27cf8c6699722ebc331244c3cda"
},
{
"fixed": "cf4e9c230edfd96fc94a1b1d355500aa8c6f1771"
},
{
"fixed": "267d4645ea940f8f97d1a9838deff6a12097564d"
},
{
"fixed": "ac4684239641fb3dab2d636b53a61c46462d1208"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"fixed": "9.24"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "10.0"
},
{
"fixed": "10.12"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "11.0"
},
{
"fixed": "11.5"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "cf4e9c230edfd96fc94a1b1d355500aa8c6f1771"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "267d4645ea940f8f97d1a9838deff6a12097564d"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "ac4684239641fb3dab2d636b53a61c46462d1208"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v11.4",
"v9.23",
"v10.11",
"v9.22",
"v11.3",
"v10.10",
"v9.21",
"v11.2",
"v10.9",
"v9.20",
"v11.1",
"v10.8",
"v11.0",
"v9.19",
"v10.7",
"v9.18",
"v10.6",
"v3.8",
"v9.17",
"v10.5",
"v10.4",
"v9.16",
"v10.3",
"v9.15",
"v10.2",
"v9.13",
"v10.0",
"v9.12",
"v9.10",
"v9.8",
"v9.7",
"v9.6",
"v9.5",
"v9.4",
"v9.3",
"v9.1",
"v9.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110761.json"
}
}
],
"modified": "2026-10-28T02:30:52.852179691Z",
"provider": "osv",
"references": [
"https://docu.ilias.de/go/blog/15821/952",
"https://docu.ilias.de/ilias.php?baseClass=illmpresentationgui&obj_id=228077&ref_id=35",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110761.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-110761",
"https://www.vulncheck.com/advisories/ilias-before-9.24-10.12-and-11.5-php-object-injection-via-test-results-import",
"https://github.com/ILIAS-eLearning/ILIAS/commit/267d4645ea940f8f97d1a9838deff6a12097564d",
"https://github.com/ILIAS-eLearning/ILIAS/commit/ac4684239641fb3dab2d636b53a61c46462d1208",
"https://github.com/ILIAS-eLearning/ILIAS/commit/cf4e9c230edfd96fc94a1b1d355500aa8c6f1771",
"https://github.com/ILIAS-eLearning/ILIAS",
"https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146b884d4/components/ILIAS/Test/classes/class.ilObjTest.php#L7364",
"https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146b884d4/components/ILIAS/Test/classes/class.ilTestResultsImportParser.php#L225"
],
"provider_metadata": {
"cwe_ids": [
"CWE-502"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110761.json"
}
},
"related_cves": [
{
"value": "CVE-2026-110761",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521704,
"published_at": "2026-10-14T18:47:35.995+00:00"
}