Iframe escape by plugins in Logseq
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Logseq is vulnerable to a sandbox escape flaw where plugins running in sandboxed iframes can inject arbitrary HTML attributes, such as event handlers, into their container element in the host DOM. Due to a disabled Content Security Policy (CSP), this allows a malicious plugin to execute arbitrary JavaScript in the privileged host context, potentially gaining unauthorized access to filesystem APIs. While only version v0.10.15 was tested and confirmed as vulnerable, status of other versions is unknown since this issue was not addressed by a patch.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47901
- 2026-10-03 Alias added: GHSA-jm26-ghmc-7c2w
References
Other 1
More logseq vulnerabilities
- TI-2026-08151 Shell command injection in Logseq CVSS 4.0HIGH 8.7
- TI-2026-35347 Arbitrary File Read, Write, Rename, and Delete in Logseq CVSS 4.0HIGH 8.7
- TI-2026-35348 Stored XSS via Unsanitized Plugin Metadata in Logseq CVSS 4.0MEDIUM 4.6
Sources
- CVE-2026-47901 · CVE Program
- CVE-2026-47901 · NVD
- FIRST EPSS
- GHSA-jm26-ghmc-7c2w · GitHub Advisory Database · CC BY 4.0
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