CVE-2025-56526

Name: CVE-2025-56526
Creator: NVD / NIST
Published: 2025-11-18T17:16:04.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2025-56526 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted PDF.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.35%

27.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Cinnamon	Kotaemon	<= 0.11.0

References

https://github.com/Cinnamon/kotaemonProduct
https://github.com/Cinnamon/kotaemon/commit/37cdc28Patch
https://github.com/HanTul/Kotaemon-CVE-2025-56526-56527-disclosureExploit, Third Party Advisory
https://harvest-sink-590.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-236770c3fe1e80f6a1aef381fb1c8f73Exploit, Third Party Advisory
https://skinny-exoplanet-584.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-22cd1563bd3380458588eb49f361a363Exploit, Third Party Advisory

Timeline

Published: Nov 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-56526?

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

How severe is CVE-2025-56526?

CVE-2025-56526 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2025-56526?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-56526?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST