What is the CVSS score of CVE-2026-63684?

CVE-2026-63684 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Content Templater Extension For Joomla CVE-2026-63684

EUVD-2026-47804 HIGH

Cross-Site Request Forgery (CSRF) (CWE-352)

2026-07-22 Joomla

CSRF Content Templater Extension For Joomla Rereplacer Extension For Joomla Snippets Extension For Joomla Regularlabs Com

8.8

CVSS 3.1 · Vendor: Joomla

View

Vulnerability Assessment

Weakness

CWE

CWE-352

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies

MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 27, 2026

Missing CSRF tokens, item-permission, and input-validation checks in Regular Labs Joomla extensions (Content Templater, ReReplacer, Snippets) allow unauthorized backend users or CSRF attacks to expose, create, or modify extension configuration and items. This high-severity flaw (CVSS 8.8) affects multiple versions, with low exploitation probability (EPSS 0.13%). No active exploitation or public exploit code has been identified.

Affected VersionsENISA

ReReplacer extension for Joomla 1.0.0-15.0.3

Content Templater extension for Joomla 1.0.0-13.0.0

Snippets extension for Joomla 1.0.0-9.3.10

Affected Packages

euvd content_templater_extension_for_joomla no fix

euvd rereplacer_extension_for_joomla no fix

euvd snippets_extension_for_joomla no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Know when Content Templater Extension For Joomla gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (Joomla) PRIMARY 8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from Vendor (Joomla) · only source for this CVE.

CVSS VectorVendor: Joomla

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVSS changed

Jul 27, 2026 - 18:22 NVD

8.8 (HIGH)

CVE Published

Jul 22, 2026 - 20:39 cve.org

UNKNOWN (no severity yet)

CVE Published

Jul 22, 2026 - 20:39 cve.org

HIGH 8.8

DescriptionCVE.org

Administrator actions, editor popups and import/export requests lacked consistent token, item-permission and input-validation checks. Unauthorized backend users or CSRF attacks could expose, create or modify extension configuration and items.

Threat Intelligence Overview

EPSS Score

0.1%

Top 97% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.