XSS in Acdh-Ch Openatlas
CVE-2025-40709
Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities and Cultural Heritage (ACDH-CH), due to inadequate validation of user input when a POST request is sent. The vulnerabilities could allow a remote user to send specially crafted queries to an authenticated user and steal their session cookie details, via the "/insert/person/<ID>” petition, "name" and "alias-0” parameters.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Acdh-Ch Openatlas — versions 8.9.0
- Craws Openatlas — versions 8.9.0
Weakness classification (CWE)
References
- www.incibe.es/en/incibe-cert/notices/aviso/multiple-cross-site-scripting-xss-vu… (Third Party Advisory)
- github.com/craws/OpenAtlas (Product)
Frequently asked questions
- What is CVE-2025-40709?
- CVE-2025-40709 is a medium-severity vulnerability in Acdh-Ch Openatlas, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-29.
- How severe is CVE-2025-40709?
- Medium severity. CVSS v3 base score is 5.4 out of 10.