What is CVE-2019-12205?

CVE-2019-12205 is a medium-severity vulnerability in Silverstripe, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-25.

How severe is CVE-2019-12205?

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

XSS in Silverstripe

CVE-2019-12205

SilverStripe through 4.3.3 has Flash Clipboard Reflected XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-09-25 · 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: 0.009 (57.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Silverstripe

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.silverstripe.org/download/security-releases/ (Vendor Advisory)
forum.silverstripe.org/c/releases (Release Notes, Vendor Advisory)
www.silverstripe.org/download/security-releases/CVE-2019-12205 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-12205?: CVE-2019-12205 is a medium-severity vulnerability in Silverstripe, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-25.
How severe is CVE-2019-12205?: Medium severity. CVSS v3 base score is 6.1 out of 10.