What is CVE-2025-65187?

CVE-2025-65187 is a medium-severity vulnerability in Civicrm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-12-02.

How severe is CVE-2025-65187?

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

XSS in Civicrm

CVE-2025-65187

A Stored Cross Site Scripting vulnerability exists in CiviCRM before v6.7 in the Accounting Batches field. An authenticated user can inject malicious JavaScript into this field and it executes whenever the page is viewed.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-12-02 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.002 (11.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Civicrm

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

civicrm.com/ (Product)
github.com/lukehebe/Vulnerability-Disclosures/blob/main/CVE-2025-65187.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-65187?: CVE-2025-65187 is a medium-severity vulnerability in Civicrm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-12-02.
How severe is CVE-2025-65187?: Medium severity. CVSS v3 base score is 6.1 out of 10.