Vulnerability · Published Sep 3, 2026 · Assigned by VulnCheck

CVE-2026-85453MOOS core-moos through 10.4.0 MOOSDB HTTP Pages Stored Cross-Site Scripting

Medium 6.1

In plain English

A medium-severity cross-site scripting in core-moos from themoos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 72.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

MOOS core-moos through 10.4.0 fails to escape database contents when rendering MOOSDB HTTP pages, allowing attackers to inject malicious scripts. Any MOOS publisher can set variable values containing script payloads that execute in the browser of operators viewing the web interface.

Affected products (as reported)

Vendor	Product	Versions
themoos	core-moos	0 – through 10.4.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Pull Request #78 issue-tracking, patch
Proposed fix commit (pull request not merged) patch
https://github.com/themoos/core-moos product
HTTPConnection.cpp (verified sink) technical-description
VulnCheck Advisory: MOOS core-moos through 10.4.0 MOOSDB HTTP Pages Stored Cross-Site Scripting third-party-advisory