Threats / Drupal / CVE-2018-7600
CVE-2018-7600
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-06
Drupal Core vulnerability
Drupal Core remote code execution vulnerability allowing complete site compromise through multiple attack vectors. Actively exploited in the wild and leveraged in ransomware campaigns.
Verdict
Today item, not a backlog item.
An unauthenticated attacker can execute arbitrary code on vulnerable Drupal installations, leading to full system compromise. The vulnerability has high real-world exploitation activity and is weaponized in ransomware operations.
01
Is it exploitable?
— the evidence, ranked above the scoreExploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.94489 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Drupal, Drupal Core. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-20 Improper Input Validation.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No threat-actor attribution is established from the public feed for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify a vulnerable Drupal Core instance exposed on the internet.
Business
The organization's web presence becomes a direct target for opportunistic and organized attack groups.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft and deliver an exploit payload that bypasses input validation to execute remote code.
Business
Attackers gain unrestricted command execution within the application and underlying server environment.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistent access and move laterally through connected systems and data stores.
Business
The breach expands beyond the web application to internal networks, databases, and sensitive business systems.
4
Data at risk — exfiltration narrative 4
Attacker
I exfiltrate data or deploy ransomware to encrypt critical assets.
Business
The organization faces operational shutdown, data loss, regulatory penalties, and potential ransom demands.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by drupalCNA
Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.