What is CVE-2025-0666?

CVE-2025-0666 is a medium-severity vulnerability in Boinc Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-05-07.

How severe is CVE-2025-0666?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Boinc Server

CVE-2025-0666

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in BOINC Server allows Stored XSS.This issue affects BOINC Server: through 1.4.7.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-05-07 · last modified 2026-06-17.

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: 0.003 (15.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% 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: 0.003 · change: +0.000

Affected products

Boinc Server — versions 0
Universityofcalifornia Boinc Server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.compass-security.com/fileadmin/Research/Advisories/2025_01_CSNC-2025-002_BO… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-0666?: CVE-2025-0666 is a medium-severity vulnerability in Boinc Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-05-07.
How severe is CVE-2025-0666?: Medium severity. CVSS v3 base score is 5.4 out of 10.