high Known exploitedREV. 01

CVE-2025-23209Craft CMS — backup path injection with a leaked security key

Craft 4 and 5 do not validate the database backup path, so an attacker who already holds the installation's security key turns that into code running on the server.

YOUR NEXT MOVE

Upgrade Craft and rotate the security key now; the key is the precondition, so treat a leaked one as equivalent to server access.

Read the risk

THE VITAL STATS
CVSS score
8.1/ 10
CVSS v3.1
EPSS probability
22%
Likelihood of exploitation
Attack complexity
High
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2025-01-18
Added to KEV
2025-02-20
Exploit published
Not recorded
Confidence
high
Kill chain
execution
MITRE ATT&CK
T1059
Severity
high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attacker needsThe installation's security key, already compromised.

Behind the card

4 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2025-23209 · CRDS 0.1 · Issued 2026-09-24