What is CVE-2025-56451?

CVE-2025-56451 is a medium-severity vulnerability in Seeyon A8\+_collaborative_management, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-16.

How severe is CVE-2025-56451?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Seeyon A8\+_collaborative_management

CVE-2025-56451

Cross site scripting vulnerability in seeyon Zhiyuan A8+ Collaborative Management Software 7.0 via the topValue parameter to the seeyon/main.do endpoint.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Seeyon A8\+_collaborative_management — versions 7.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2025-56451?: CVE-2025-56451 is a medium-severity vulnerability in Seeyon A8\+_collaborative_management, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-16.
How severe is CVE-2025-56451?: Medium severity. CVSS v3 base score is 6.1 out of 10.