Authenticated Arbitrary Python File Upload via Plugin Manager
Priority HIGH 73CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.
Summary
An authenticated attacker is able to use the Plugin Manager of the web interface of the Wattsense Bridge devices to upload malicious Python files to the device. This enables an attacker to gain remote root access to the device. An attacker needs a valid user account on the Wattsense web interface to be able to conduct this attack. This issue is fixed in recent firmware versions BSP >= 6.1.0.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00702 53rd percentileScored 2026-11-07
Fix Fixed Wattsense Bridge (Wattsense): 6.1.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Wattsense Bridge (Wattsense) Fixed in 6.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-26411
- 2026-10-03 Alias added: GHSA-h9f9-r2j7-9685
References
More Wattsense vulnerabilities
- TI-2025-19367 Weak hard-coded credentials in Wattsense Bridge CVSS 3.1CRITICAL 9.8
- TI-2025-19366 Access to Bootloader and Shell Over Serial Interface CVSS 3.1MEDIUM 6.8
- TI-2025-19365 Unprotected JTAG Interface CVSS 3.1MEDIUM 6.1
Sources
- CVE-2025-26411 · CVE Program
- CVE-2025-26411 · NVD
- FIRST EPSS
- GHSA-h9f9-r2j7-9685 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences