Vulnerability report

Exploitation Attempts Observed Confirmed Confidence Not in CISA KEV

CVE-2026-123488

Craft CMS 4.0.0 before 4.18.9 SQL Injection

Craftcms / cms · affected before 4.18.9

Watch CVE-2026-123488 Browse KEV feed
Severity
CVSS 9.3 · Critical
Confidence
Confirmed
Exploit status
Exploitation Attempts Observed in the Wild
EPSS
0.5%
First observed
08 Nov 2026
Last observed
11 Nov 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-123488 is an unauthenticated vulnerability affecting Craftcms cms.

Have exploitation attempts been observed?

Yes. Previdian sensors have observed 78 exploitation attempts, 5 unique attacker IPs, and 4 countries targeting CVE-2026-123488. First observed Nov 08, 2026; last observed Nov 11, 2026. Confidence is confirmed.

Who is affected?

Craftcms / cms, including affected before 4.18.9, 4.18.9, and affected before 5.11.2.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

Craft CMS 4.0.0 before 4.18.9 SQL Injection

Craft CMS 4.0.0 before 4.18.9 and 5.0.0 before 5.11.2 contains an unauthenticated SQL injection vulnerability in the element search endpoint because the attribute parameter is concatenated into the query unsanitized and emulated PDO prepares allow stacked statements.

Remote attackers can read and write the database, setting the admin flag or overwriting password hashes in the users table to gain administrator access.

craftcms Affected
cms
Before 4.18.9 Before 5.11.2
craftcms Unaffected
cms
4.18.9 5.11.2
View vendor advisory (opens in new tab)
Published
06 Nov 2026
Exploitation Attempts Reported
08 Nov 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

CVE References

Exploitation evidence

Evidence of exploitation attempts

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploitation Attempts Observed in the Wild

Previdian

Recorded 08 Nov 2026

Previdian sensors observed exploitation attempts targeting this vulnerability.

Exploitation Attempts Observed

Previdian sensor

First observed 08 Nov 2026

Previdian sensors observed exploitation attempts targeting this vulnerability.

Proof of concept available

GitHub

Recorded 06 Nov 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
Previdian Sensors First 2026-11-11 12:09 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

Previdian Sensor Observations

Previdian sensor observations are exploitation attempts targeting this vulnerability. They do not show that the target was vulnerable or that the attempt succeeded. The cards and chart show volume, unique attackers, and daily activity.

78

Attempts observed

5

Unique attacker IPs

4

Attacker countries

HK · NL · SE · US

4

Sensors observed

CVE-2026-123488 exploitation attempts over the last 7 days

Daily events observed by Previdian sensors

Updated 11 Nov 2026

0
0
0
68
0
7
3
5 Nov 6 Nov 7 Nov 8 Nov 9 Nov 10 Nov 11 Nov

First observed 08 Nov 2026 · Last observed 11 Nov 2026

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Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
77
4
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

Previdian virtual patch guidance is available for this CVE.

AWS WAF Cloudflare ModSecurity

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-123488.yaml 11 Nov 2026

Virtual Patch Detail

Compensating WAF rules for this CVE.

Available

Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to Previdian Enterprise users.

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Risk and context

Severity, weaknesses, and research context

CVSS v4.0

9.3 Critical

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS

0.5%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CWE-89

All CVSS Scores

CVSS v4.0 9.3 Critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 9.8 Critical

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

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

dinosn/CVE-2026-123488-CraftCMS-Lab

github · Created 2026-11-08 09:42:10 UTC · 1 stars · AI assessment 84%

PoC for CVE-2026-123488: unauthenticated SQLi in the element search endpoint (CWE-89) escalating to admin via stacked UPDATE;

fixedbyreboot/CVE-2026-123488-POC

github · Created 2026-11-06 20:22:54 UTC · 0 stars · AI assessment 84%

POC exploit for CVE-2026-123488 - unauthenticated SQL injection vulnerability in Craft CMS (MySQL/MariaDB backend). Admin takeover.

Craft CMS < 4.18.9, < 5.11.2 - Unauthenticated SQL Injection

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation attempts

  1. 12:11 UTC

    Virtual patch available

    Compensating WAF rule available to block exploitation

  2. 11:00 UTC

    Nuclei template available

    Scanner coverage available

  3. 13:39 UTC

    Indicators of compromise added (5)

    Indicators of compromise recorded

  4. 13:39 UTC

    Observed by Previdian sensors

    Previdian sensors observed exploitation attempts targeting this vulnerability.

  5. 20:22 UTC

    Public PoC available

    Public proof-of-concept code published

  6. 16:20 UTC

    Added to the Previdian watchlist

    Pro and Enterprise Watch users had 5 days of early warning before Previdian KEV.

  7. 15:00 UTC

    CVE published

    Vulnerability disclosed publicly

  8. 00:44 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-123488

Sample API response 
{
  "cve_id": "CVE-2026-123488",
  "confidence": "Confirmed",
  "cvss_score": 9.3,
  "cvss_estimated": false,
  "epss_score": 0.00476,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 78, "sensors": 4 }
}