CVE-2024-43795
OpenC3 COSMOS vulnerable to cross-site scripting in Login functionality (`GHSL-2024-128`)
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.1
OpenC3 COSMOS vulnerable to cross-site scripting in Login functionality (`GHSL-2024-128`)
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
- Record
CVE-2024-43795- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2024-0126
5.1
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
- Record
EUVD-2024-0126- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vfj8-5pj7-2f9g
5.1
OpenC3 Cross-site Scripting in Login functionality (`GHSL-2024-128`)
Summary
The login functionality contains a reflected cross-site scripting (XSS) vulnerability.
Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition
Impact
This issue may lead up to Remote Code Execution (RCE).
- Record
GHSA-vfj8-5pj7-2f9g- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
5.1
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
- Record
CVE-2024-43795- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
5.1
OpenC3 COSMOS vulnerable to cross-site scripting in Login functionality (`GHSL-2024-128`)
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
- Record
CVE-2024-43795- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-vfj8-5pj7-2f9g
5.1
OpenC3 Cross-site Scripting in Login functionality (`GHSL-2024-128`)
Summary
The login functionality contains a reflected cross-site scripting (XSS) vulnerability.
Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition
Impact
This issue may lead up to Remote Code Execution (RCE).
- Record
GHSA-vfj8-5pj7-2f9g- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVPYSEC-2024-100
6.1
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. The login functionality contains a reflected cross-site scripting (XSS) vulnerability. This vulnerability is fixed in 5.19.0. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition.
- Record
PYSEC-2024-100- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openc3RubyGems |
before 5.19.0 | 5.19.0 |
@openc3/tool-commonnpm |
before 5.19.0 | 5.19.0 |
openc3PyPI |
before 5.19.0 | 5.19.0 |
openc3RubyGems |
before 5.19.0, plus listed versions 5.0.105.0.115.0.65.0.75.0.8 Show 42 moreShow less5.0.95.1.05.1.15.10.05.10.15.11.05.11.15.11.25.11.35.12.05.13.05.14.05.14.15.14.25.15.05.15.15.15.25.16.05.16.15.16.25.17.05.17.15.18.05.2.05.3.05.4.05.4.15.4.25.4.3.pre.beta05.5.05.5.0.pre.beta05.5.15.5.25.5.2.pre.beta05.6.05.6.15.7.05.7.25.8.05.8.15.9.05.9.1 |
5.19.0 |
openc3PyPI |
before 5.19.0, plus listed versions 0.1.05.10.05.10.15.11.05.11.1 Show 17 moreShow less5.11.25.11.35.12.05.13.05.14.05.14.15.14.25.15.05.15.15.15.25.16.05.16.15.16.25.17.05.17.15.18.05.9.2b0 |
5.19.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-43795 is a medium vulnerability (CVSS 5.1) in Openc3 Cosmos, published October 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 41st percentile. Fixed in openc3 5.19.0.
References
github.com/OpenC3/cosmos/security/advisories/GHSA-vfj8-5pj7-2f9g
github.com/OpenC3/cosmos/commit/762d7e0e93bdc2f340b1e42acccedc78994a576e
securitylab.github.com/advisories/GHSL-2024-127_GHSL-2024-129_OpenC3_COSMOS
nvd.nist.gov/vuln/detail/CVE-2024-43795
github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2024-43795.yml
github.com/pypa/advisory-database/tree/main/vulns/openc3/PYSEC-2024-100.yaml
github.com/advisories/GHSA-vfj8-5pj7-2f9g
github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43795.json
github.com/OpenC3/cosmos