What’s Vulnerable › Vulnerabilities

CVE-2025-56526

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-18 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted PDF.

Affected products

• Cinnamon kotaemon: through 0.11.0

References

• https://github.com/Cinnamon/kotaemon
• https://github.com/Cinnamon/kotaemon/commit/37cdc28
• 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
• https://skinny-exoplanet-584.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-22cd1563bd3380458588eb49f361a363

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