Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute…
Priority MEDIUM 60CWE-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 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted PDF.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
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
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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-2025-56526
- 2026-10-03 Alias added: GHSA-vfwg-j93f-wfr4
References
Exploit 3
- https://skinny-exoplanet-584.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-22cd1563bd3380458588eb49f361a363
- https://github.com/HanTul/Kotaemon-CVE-2025-56526-56527-disclosure
- https://harvest-sink-590.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-236770c3fe1e80f6a1aef381fb1c8f73
More Cinnamon Kotaemon vulnerabilities
- TI-2025-35363 Plaintext password storage in Kotaemon 0.11.0 in the client's localStorage. CVSS 3.1HIGH 7.5
- TI-2025-39488 An issue was discovered in Cinnamon kotaemon 0.11.0. CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-56526 · CVE Program
- CVE-2025-56526 · NVD
- FIRST EPSS
- GHSA-vfwg-j93f-wfr4 · GitHub Advisory Database · CC BY 4.0
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