Path Traversal in Ilias-Elearning E.v. Ilias
CVE-2026-82877
ILIAS before versions 9.22, 10.10, and 11.3 contains an arbitrary file read vulnerability in the SOAP addFile method that allows authenticated users to read server files by supplying crafted XML with COPY-mode imports. Attackers can construct absolute file paths through an unsandboxed import directory and retrieve sensitive files including configuration files containing database credentials and setup passwords.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/ILIAS-eLearning/ILIAS/commit/e9acd3f8d498279f6c26a145ca32ce85152496a4 (patch)
- github.com/ILIAS-eLearning/ILIAS/blob/v11.2/components/ILIAS/File/classes/class… (technical-description)
- github.com/ILIAS-eLearning/ILIAS/blob/v11.2/components/ILIAS/soap/classes/class… (technical-description)
- github.com/ILIAS-eLearning/ILIAS (product)
- www.vulncheck.com/advisories/ilias-before-9.22-arbitrary-file-read-via-soap-add… (third-party-advisory)
- docu.ilias.de/ilias.php (product, patch)
- docu.ilias.de/ilias.php (product, patch)
- docu.ilias.de/ilias.php (product, patch)
- docu.ilias.de/ilias.php (release-notes)
- docu.ilias.de/ilias.php (release-notes)
Frequently asked questions
- What is CVE-2026-82877?
- CVE-2026-82877 is a medium-severity vulnerability in Ilias-Elearning E.v. Ilias, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-08-31.
- How severe is CVE-2026-82877?
- Medium severity. CVSS v3 base score is 6.5 out of 10.