EdgeEver: Stored cross-site scripting in memo drag preview
Summary
EdgeEver through version 1.112.0 contains a stored cross-site scripting vulnerability in the setMemoDragPreview function. An attacker who can set notebook names or memo titles, for example through the MCP create_notebook, rename_notebook or create_memo tools, can inject script that runs when a victim drags the affected item. The script can access the desktop bridge's session token.
Affected
- EdgeEver 0.1.0 up to and including 1.112.0 (per CVE record and VulnCheck)
- Conflicting data: OSV also lists 1.112.0 as fixed in a separate range; unresolved
- Versions 2.x are not confirmed as affected or unaffected
Fixed in
Unknown. No vendor advisory with a confirmed fixed version was found. A patch commit is referenced in the CVE data but its content could not be verified.
Workaround
- No vendor workaround found.
- Restrict who can create or rename notebooks and memos, including MCP tokens.
- Treat notebook and memo titles from untrusted sources as hostile.
- Do not expose the instance to the internet unless required.
Exploitation
- Not known to be exploited; not listed in CISA KEV.
- No public proof of concept found.
- CISA SSVC: exploitation status PoC, not automatable.
- Requires an authenticated user or MCP token and user interaction (drag action).
Our recommendation
- Identify whether EdgeEver is in use (Docker, Cloudflare or desktop app) and which version.
- Ask the vendor via GitHub issues #534 or #546 to confirm the fixed version.
- Update to a confirmed fixed release, or restrict access until then.
- Limit accounts and MCP tokens that can write notebook or memo names.
- Monitor for unexpected changes to notebook and memo titles.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- EdgeEver project repository github.com
- VulnCheck advisory www.vulncheck.com
- Vulnerable source file app-helpers.ts github.com
- Patch commit 6b5027e github.com
- GitHub issue #534 github.com
- GitHub issue #546 github.com
- VulDB entry 417284 vuldb.com
- OSV record CVE-2026-109557 osv.dev
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 12:36.
Original description (NVD)
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.
NVD references (7)
- https://github.com/tianma-if/edgeever
- https://github.com/tianma-if/edgeever/blob/f6ade70423ba366077653dbb8ac43a677933c776/apps/web/src/lib/app-help…
- https://github.com/tianma-if/edgeever/commit/6b5027e8b4becbee0c0de7cd1a3d04af78ca87ca
- https://github.com/tianma-if/edgeever/issues/534
- https://github.com/tianma-if/edgeever/issues/546
- https://www.vulncheck.com/advisories/edgeever-through-1.112.0-stored-xss-via-setmemodragpreview-drag-preview
- https://github.com/tianma-if/edgeever/issues/534
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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