CVE-2025-11346 (GCVE-0-2025-11346)
Vulnerability from cvelistv5 – Published: 2025-10-06 19:32 – Updated: 2026-02-24 06:46 X_Open Source
VLAI
EPSS
VEX
Title
ILIAS Base64 Decoding unserialize deserialization
Summary
A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-06 19:42 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.327231 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.327231 | signaturepermissions-required |
| https://vuldb.com/?submit.664892 | third-party-advisory |
| https://wid.cert-bund.de/portal/wid/securityadvis… | government-resource |
| https://srlabs.de/blog/breaking-ilias-part-2-thre… |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | ILIAS |
Affected:
8.0
Affected: 8.1 Affected: 8.2 Affected: 8.3 Affected: 8.4 Affected: 8.5 Affected: 8.6 Affected: 8.7 Affected: 8.8 Affected: 8.9 Affected: 8.10 Affected: 8.11 Affected: 8.12 Affected: 8.13 Affected: 8.14 Affected: 8.15 Affected: 8.16 Affected: 8.17 Affected: 8.18 Affected: 8.19 Affected: 8.20 Affected: 8.21 Affected: 8.22 Affected: 8.23 Affected: 9.0 Affected: 9.1 Affected: 9.2 Affected: 9.3 Affected: 9.4 Affected: 9.5 Affected: 9.6 Affected: 9.7 Affected: 9.8 Affected: 9.9 Affected: 9.10 Affected: 9.11 Affected: 9.12 Affected: 9.13 Affected: 10.0 Affected: 10.1 Unaffected: 8.24 Unaffected: 9.14 Unaffected: 10.2 cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:* |
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}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-06T19:43:07.562Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*"
],
"modules": [
"Base64 Decoding Handler"
],
"product": "ILIAS",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "8.0"
},
{
"status": "affected",
"version": "8.1"
},
{
"status": "affected",
"version": "8.2"
},
{
"status": "affected",
"version": "8.3"
},
{
"status": "affected",
"version": "8.4"
},
{
"status": "affected",
"version": "8.5"
},
{
"status": "affected",
"version": "8.6"
},
{
"status": "affected",
"version": "8.7"
},
{
"status": "affected",
"version": "8.8"
},
{
"status": "affected",
"version": "8.9"
},
{
"status": "affected",
"version": "8.10"
},
{
"status": "affected",
"version": "8.11"
},
{
"status": "affected",
"version": "8.12"
},
{
"status": "affected",
"version": "8.13"
},
{
"status": "affected",
"version": "8.14"
},
{
"status": "affected",
"version": "8.15"
},
{
"status": "affected",
"version": "8.16"
},
{
"status": "affected",
"version": "8.17"
},
{
"status": "affected",
"version": "8.18"
},
{
"status": "affected",
"version": "8.19"
},
{
"status": "affected",
"version": "8.20"
},
{
"status": "affected",
"version": "8.21"
},
{
"status": "affected",
"version": "8.22"
},
{
"status": "affected",
"version": "8.23"
},
{
"status": "affected",
"version": "9.0"
},
{
"status": "affected",
"version": "9.1"
},
{
"status": "affected",
"version": "9.2"
},
{
"status": "affected",
"version": "9.3"
},
{
"status": "affected",
"version": "9.4"
},
{
"status": "affected",
"version": "9.5"
},
{
"status": "affected",
"version": "9.6"
},
{
"status": "affected",
"version": "9.7"
},
{
"status": "affected",
"version": "9.8"
},
{
"status": "affected",
"version": "9.9"
},
{
"status": "affected",
"version": "9.10"
},
{
"status": "affected",
"version": "9.11"
},
{
"status": "affected",
"version": "9.12"
},
{
"status": "affected",
"version": "9.13"
},
{
"status": "affected",
"version": "10.0"
},
{
"status": "affected",
"version": "10.1"
},
{
"status": "unaffected",
"version": "8.24"
},
{
"status": "unaffected",
"version": "9.14"
},
{
"status": "unaffected",
"version": "10.2"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "rehme_srlabs (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 6.5,
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "Deserialization",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-24T06:46:26.247Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-327231 | ILIAS Base64 Decoding unserialize deserialization",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.327231"
},
{
"name": "VDB-327231 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.327231"
},
{
"name": "Submit #664892 | ILIAS open source e-Learning e. V. ILIAS \u003e=8.0.0, \u003c=10.1 Deserialization",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.664892"
},
{
"tags": [
"government-resource"
],
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2113"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2025-10-06T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-10-06T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-10-15T09:15:18.000Z",
"value": "VulDB entry last update"
}
],
"title": "ILIAS Base64 Decoding unserialize deserialization"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-11346",
"datePublished": "2025-10-06T19:32:05.171Z",
"dateReserved": "2025-10-06T06:15:37.942Z",
"dateUpdated": "2026-02-24T06:46:26.247Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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