Stored Cross-Site Scripting (XSS) vulnerability on Flatboard
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Stored Cross-Site Scripting (XSS) vulnerability in versions prior to Flatboard 3.2.2 of Flatboard Pro, consisting of a stored XSS due to lack of proper validation of user input, through the footer_text and announcement parameters in config.php.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Flatboard Pro | Flatboard | before 3.2.2 | 3.2.2 | Patch available | CNA |
- Flatboard VendorFlatboard Pro Affected before 3.2.2 Fixed in 3.2.2 Patch available CNA
Remediation
- Fix · CNA Flatboard (Flatboard Pro) Fixed in 3.2.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Flatboard 3.2.2
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-27190 Stored Cross-Site Scripting (XSS) vulnerability on FlatboardPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40723
- 2026-10-03 Alias added: GHSA-j7j3-j59j-p82h
References
More Flatboard Pro vulnerabilities
- TI-2025-27190 Stored Cross-Site Scripting (XSS) vulnerability on Flatboard CVSS 4.0MEDIUM 5.1
Sources
- CVE-2025-40723 · CVE Program
- CVE-2025-40723 · NVD
- FIRST EPSS
- GHSA-j7j3-j59j-p82h · GitHub Advisory Database · CC BY 4.0
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