ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import
Summary
| CVE | CVE-2026-110761 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-14 19:17:11 UTC |
| Updated | 2026-10-14 20:17:31 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 8.7 HIGH from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-502 | CWE-502 Deserialization of Untrusted Data
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 8.7 | HIGH | 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/E:X/C... |
| 4.0 | CNA | CVSS | 8.7 | HIGH | 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 |
| 3.1 | [email protected] | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | ILIAS-eLearning E.V. | ILIAS | affected 9.0 9.24 custom | Not specified |
| CNA | ILIAS-eLearning E.V. | ILIAS | affected 10.0 10.12 custom | Not specified |
| CNA | ILIAS-eLearning E.V. | ILIAS | affected 11.0 11.5 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/ILIAS-eLearning/ILIAS/commit/ac4684239641fb3dab2d636b53a61c46... | [email protected] | github.com | |
| github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146... | [email protected] | github.com | |
| github.com/ILIAS-eLearning/ILIAS/commit/267d4645ea940f8f97d1a9838deff6a1... | [email protected] | github.com | |
| github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146... | [email protected] | github.com | |
| github.com/ILIAS-eLearning/ILIAS/commit/cf4e9c230edfd96fc94a1b1d355500aa... | [email protected] | github.com | |
| github.com/ILIAS-eLearning/ILIAS | [email protected] | github.com | |
| docu.ilias.de/ilias.php | [email protected] | docu.ilias.de | |
| www.vulncheck.com/advisories/ilias-before-9.24-10.12-and-11.5-php-object-inject... | [email protected] | www.vulncheck.com | |
| docu.ilias.de/go/blog/15821/952 | [email protected] | docu.ilias.de | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: André Schweigert (SchweigertIT) (en)
There are currently no legacy QID mappings associated with this CVE.