Quick answers
- Is CVE-2026-85453 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85453 being exploited in the wild.
- How severe is CVE-2026-85453?
- Medium severity, with a CVSS score of 6.1, published 3 September 2026.
- Which products and versions are affected?
- MOOS Core-Moos through 10.4.0.
- Is there a fix for CVE-2026-85453?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-85453 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-85453?
- Check whether you run MOOS Core-Moos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is a DOM-based cross-site scripting (XSS) vulnerability in the HTTPConnection.cpp component of MOOSDB, which renders database contents into HTML without proper escaping. Any MOOS publisher can write variable values containing script payloads (e.g., <script>alert(document.cookie)</script>) into the database. When the web interface retrieves and renders these values, the browser executes the embedded scripts. Attack requires network access to the MOOS network and the ability to act as a publisher, but no authentication bypass; impact includes session compromise and operator manipulation. A fix would require output encoding of all database contents in the HTTP response handler.
Affected products
- MOOS core-moos through 10.4.0
Timeline
- 2026-09-03: disclosed