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TI-2026-71287 Aliases CVE-2026-109557GHSA-489r-rjvf-hwg5

Stored cross-site scripting in EdgeEver drag preview

Priority HIGH 72CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

EdgeEver from 0.1.0 through 1.112.0 contains a stored cross-site scripting flaw (CWE-79) in setMemoDragPreview. An attacker with low privileges can set malicious notebook names or memo titles through MCP tools, so the script runs on drag and can reach the desktop bridge's session token. CISA's SSVC rates exploitation as proof of concept and the flaw as not automatable.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

EdgeEver through 1.112.0 contains a stored cross-site scripting vulnerability in setMemoDragPreview that allows attackers to inject script through notebook names or memo titles. Attackers can set malicious names via MCP create_notebook, rename_notebook or create_memo tools, running script on drag with access to the desktop bridge's session token.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00419 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
tianma-ifEdgeEver0.1.0 – 1.112.0—No fix listedCNA
  • EdgeEver Vendortianma-if Affected 0.1.0 – 1.112.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for EdgeEver.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-109557
  2. 2026-10-13 Alias added: GHSA-489r-rjvf-hwg5
  3. 2026-10-13 Priority changed: MEDIUM → LOW
  4. 2026-10-16 CISA SSVC decision points changed
  5. 2026-10-16 Priority changed: LOW → HIGH

References

Patch 1

Other 4

  • TI-2026-71288 EdgeEver Stored XSS via TemplatesPane Template Preview CVSS 4.0HIGH 8.5
  • TI-2026-71286 Code execution in EdgeEver Desktop via unchecked ACP IPC handler CVSS 4.0HIGH 7.3
  • TI-2026-70706 Missing authorization in EdgeEver memo template API routes CVSS 4.0MEDIUM 5.3
  • TI-2026-71289 Navigation allowlist bypass in EdgeEver Desktop exposes its bridge CVSS 4.0HIGH 8.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences