KBoard < 6.7 - Unauthenticated Board Media Deletion via IDOR
Priority LOW 30CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.
Summary
The kboard WordPress plugin before 6.7 does not verify ownership or context before deleting board media, allowing unauthenticated attackers to permanently delete its uploaded media files and their database records by iterating identifiers.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed kboard (Unknown): 6.7
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| Unknown | kboard | before 6.7 | 6.7 | Patch available | CNA |
- kboard VendorUnknown Affected before 6.7 Fixed in 6.7 Patch available CNA
Remediation
- Fix · CNA kboard (Unknown) Fixed in 6.7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-88910
- 2026-10-03 Alias added: GHSA-6w2r-gp8j-3hjr
References
Sources
- CVE-2026-88910 · CVE Program
- CVE-2026-88910 · NVD
- FIRST EPSS
- GHSA-6w2r-gp8j-3hjr · GitHub Advisory Database · CC BY 4.0
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