XSS in N/a

CVE-2025-56320

CobbleStone Enterprise Contract Management Portal v.22.4.0 is vulnerable to Stored Cross-Site Scripting (XSS) in its chat box component. This allows a remote attacker to execute arbitrary code. NOTE: the Supplier reports that this is "Present only in an obsolete, unsupported version no longer in circulation."

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-56320: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-56320?
CVE-2025-56320 is a medium-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-10-17.
How severe is CVE-2025-56320?
Medium severity. CVSS v3 base score is 5.4 out of 10.