CVE-2025-56526

MEDIUM

Cinnamon Kotaemon < 0.11.0 - XSS

Title source: rule

Description

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

Exploits (1)

nomisec WRITEUP 1 stars

by HanTul · poc

https://github.com/HanTul/Kotaemon-CVE-2025-56526-56527-disclosure

View Code ZIP pw:eip

References (5)

[Product] https://github.com/Cinnamon/kotaemon

[Patch] https://github.com/Cinnamon/kotaemon/commit/37cdc28

[Exploit, Third Party Advisory] https://github.com/HanTul/Kotaemon-CVE-2025-56526-56527-disclosure

[Exploit, Third Party Advisory] https://harvest-sink-590.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-236770c3fe1e80f6a1aef381fb1c8f73

[Exploit, Third Party Advisory] https://skinny-exoplanet-584.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-22cd1563bd3380458588eb49f361a363

Scores

CVSS v3 6.1

EPSS 0.0003

EPSS Percentile 10.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE

CWE-79

Status published

Products (1)

cinnamon/kotaemon < 0.11.0

Published Nov 18, 2025

Tracked Since Feb 18, 2026