LayerBB 1.1.1 allows XSS via the titles of conversations (PMs).
Priority LOW 33CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
LayerBB 1.1.1 allows XSS via the titles of conversations (PMs).
Why it matters now
EPSS 0.0358 89th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-17997
- 2026-10-03 Alias added: GHSA-c2h7-pxvr-px58
References
More Layerbb vulnerabilities
- TI-2019-10422 LayerBB 1.1.3 allows admin/general.php arbitrary file upload because the custom_logo… CVSS 3.0CRITICAL 9.8
- TI-2018-12807 LayerBB 1.1.1 and 1.1.3 has SQL Injection via the search.php search_query parameter. CVSS 3.1CRITICAL 9.8
- TI-2019-12394 LayerBB before 1.1.4 has multiple CSRF issues, as demonstrated by changing the System Settings via admin/general.php. CVSS 3.1HIGH 8.8
- TI-2019-10423 LayerBB 1.1.3 allows conversations.php/cmd/new CSRF. CVSS 3.0HIGH 8.8
- TI-2018-12810 LayerBB before 1.1.3 allows CSRF for adding a user via admin/new_user.php, deleting a… CVSS 3.0MEDIUM 6.5
- TI-2019-10421 LayerBB 1.1.3 allows XSS via the application/commands/new.php pm_title variable, a related issue to CVE-2019-17997. CVSS 3.0MEDIUM 6.1
Sources
- CVE-2018-17997 · CVE Program
- CVE-2018-17997 · NVD
- FIRST EPSS
- GHSA-c2h7-pxvr-px58 · GitHub Advisory Database · CC BY 4.0
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