CVE-2025-40706 Cross-Site Scripting (XSS) vulnerability in OpenAtlas by ACDH-CH
Remote attackers can steal session cookies from authenticated users via XSS in the source insertion form, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-40706?
CVE-2025-40706 is a medium-severity cross-site scripting vulnerability in ACDH-CH OpenAtlas, published on 29 Aug 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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/source" petition, "name" parameter.
Weakness: CWE-79
Which versions are affected by CVE-2025-40706?
It affects 1 product.
Products include Craws Openatlas.
How do I fix CVE-2025-40706?
No fix has been published for CVE-2025-40706 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-40706 being exploited?
There is no known exploitation of CVE-2025-40706 in the wild and no public exploit code.
Other vulnerabilities in ACDH-CH OpenAtlas
Sources
Also known as GHSA-28g2-5g7h-g9v7.