No exploitation reportedFix available

CVE-2019-16409

Q: Is CVE-2019-16409 actively exploited?

Active exploitation of CVE-2019-16409 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-16409?

CVE-2019-16409 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

No exploitation reported by the sources we read.

Published2019-09-26
Fixed in4.4.4 · 4.3.5

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In the Versioned Files module through 2.0.3 for SilverStripe 3.x, unpublished versions of files are publicly exposed to anyone who can guess their URL. This guess could be highly informed by a basic understanding of the symbiote/silverstripe-versionedfiles source code. (Users who upgrade from SilverStripe 3.x to 4.x and had Versioned Files installed have no further need for this module, because the 4.x release has built-in versioning. However, nothing in the upgrade process automates the destruction of these insecure artefacts, nor alerts the user to the criticality of destruction.)

Timeline

dates in UTC

2019-09-2616:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-16409?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-16409?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD

silverstripe/framework

Branch	Affected	Fixed in	Source
4.4	≥ 4.4.0, < 4.4.4	4.4.4	OSV
4.x	≥ 4.0.0, < 4.3.5	4.3.5	OSV

Silverstripe

Branch	Affected	Fixed in	Source
3.x	≥ 3.0.0, ≤ 3.7.4	no fix published	NVD

Symbiote versionedfiles

Branch	Affected	Fixed in	Source
2.0	≤ 2.0.3	no fix published	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update silverstripe/framework to 4.4.4 · 4.3.5

Advisories and patches

www.silverstripe.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.15.3read 2026-10-23
NVDCVSS 2.05read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published: 2019-09-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-16409?

Is CVE-2019-16409 actively exploited?

Active exploitation of CVE-2019-16409 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-16409?

CVE-2019-16409 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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