BentoPDF: Stored XSS via Markdown Editor Leading to Persistent File Exfiltration
Priority LOW 31CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
BentoPDF is a client-side PDF toolkit that is self hostable. Prior to version 2.8.3, a cross-site scripting vulnerability was identified in BentoPD. An attacker may be able to execute arbitrary JavaScript in certain circumstances in Markdown to PDF Tool. This issue has been patched in version 2.8.3.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00356 29th percentileScored 2026-11-07
Fix Fixed bentopdf (alam00000): 2.8.3
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
- Fix · CNA bentopdf (alam00000) Fixed in 2.8.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41653
References
More alam00000 vulnerabilities
- TI-2026-54083 BentoPDF: SSRF in cors-proxy-worker.js via DNS-based hostname allowlist bypass CVSS 3.1HIGH 8.6
- TI-2026-45275 BentoPDF: Workflow Import Allows Unvalidated TSA URL Leading to PDF Hash Exfiltration via RFC 3161 Requests CVSS 3.1LOW 3.4
- TI-2026-74400 Server-side request forgery in BentoPDF CORS proxy via DNS rebinding CVSS 3.1MEDIUM 6.8
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences