CVE-2025-28380 Cross-site scripting in n/a

What is CVE-2025-28380?

CVE-2025-28380 is a medium-severity cross-site scripting vulnerability in n/a, published on 13 Jun 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A cross-site scripting (XSS) vulnerability in OpenC3 COSMOS before v6.0.2 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the URL parameter.

Weakness: CWE-79

Which versions are affected by CVE-2025-28380?

1 open source package ship an affected version, including openc3. It affects 1 product.

Products include Openc3 Cosmos.

How do I fix CVE-2025-28380?

No fix has been published for CVE-2025-28380 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-2025-28380 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-28380 exists.

Other vulnerabilities in n/a

• CVE-2025-28386 Code injection in n/a Critical 9.8
• CVE-2025-28388 Hardcoded credentials in n/a Critical 9.8
• CVE-2025-28389 Weak cryptography in n/a Critical 9.8
• CVE-2026-42087 OpenC3 COSMOS: SQL Injection in QuestDB Time-Series Data Base Critical 9.6
• CVE-2026-42088 OpenC3 COSMOS: Administrative Actions via the Script Runner Tool Critical 9.6

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-pmmr-4c35-wgj4, PYSEC-2025-254.