How severe is CVE-2025-56526?

CVE-2025-56526 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-56526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56526?

CVE-2025-56526 affects Cinnamon Kotaemon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-56526 have an EU (EUVD) identifier?

Yes. CVE-2025-56526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198039.

When was CVE-2025-56526 published?

CVE-2025-56526 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-56526

CVE-2025-56526 is a medium-severity vulnerability in Cinnamon Kotaemon with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198039
Weakness: CWE-79
Affected product: Cinnamon Kotaemon
Published: 2025-11-18
Last modified: 2026-06-17

Description

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

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 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-56526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56526?: CVE-2025-56526 affects Cinnamon Kotaemon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-56526 have an EU (EUVD) identifier?: Yes. CVE-2025-56526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198039.
When was CVE-2025-56526 published?: CVE-2025-56526 was published on 2025-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cinnamon:kotaemon:*:*:*:*:*:*:*:*

More vulnerabilities in Cinnamon Kotaemon

CVE-2025-56527 — High (CVSS 7.5): Plaintext password storage in Kotaemon 0.11.0 in the client's localStorage.
CVE-2025-63914 — Medium (CVSS 6.5): An issue was discovered in Cinnamon kotaemon 0.11.0. The _may_extract_zip function in the…

All CVEs affecting Cinnamon Kotaemon →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →