Joomla Webserver: Potential CVE-2023-23752 Exploitation via GET public=true on /api/index.php/v1/

Alerts on GET requests to Joomla API paths with 'public=true' query parameters commonly associated with CVE-2023-23752 probing.

FreeReviewedSigma · High · v5

Category: webserver
Author: Bhabesh Raj (SigmaHQ), DRL 1.1
Published: 2023-02-23
Updated: 2026-07-31

Analysis Detection

ATT&CK techniques

Initial Access

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags HTTP GET requests to Joomla web service endpoints matching /api/index.php/v1/ with a public=true query parameter. Such patterns can indicate an attempt to access resources or functionality in ways that may be affected by an improper access check. It relies on webserver telemetry containing the request method (GET) and the full URI query string.

Reporting behind it

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Joomla Webserver: Potential CVE-2023-23752 Exploitation via GET public=true on /api/index.php/v1/

Pivot detection · T1190 · 9 related

Changelog

v5
Candidate ingested via manual entry.2026-07-31
v4
Candidate ingested via manual entry.2026-07-31
v3
Candidate ingested via manual entry.2026-07-31
v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

joomla-web-endpoint-get-requests-matching-cve-2023-23752-exploitation-parameters-0e1ebc5a

title: "Joomla Webserver: Potential CVE-2023-23752 Exploitation via GET public=true on /api/index.php/v1/"
id: 65419e64-a23a-4c8d-87ae-7a2722518382
status: test
description: This rule flags HTTP GET requests to Joomla web service endpoints matching /api/index.php/v1/ with a public=true query parameter. Such patterns can indicate an attempt to access resources or functionality in ways that may be affected by an improper access check. It relies on webserver telemetry containing the request method (GET) and the full URI query string.
references:
  - https://xz.aliyun.com/t/12175
  - https://twitter.com/momika233/status/1626464189261942786
  - https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2023/Exploits/CVE-2023-23752/web_cve_2023_23752_joomla_exploit_attempt.yml
author: Bhabesh Raj, Huntrule Team
date: 2023-02-23
tags:
  - attack.initial-access
  - attack.t1190
  - cve.2023-23752
  - detection.emerging-threats
logsource:
  category: webserver
detection:
  selection:
    cs-method: GET
    cs-uri-query|contains|all:
      - /api/index.php/v1/
      - public=true
  condition: selection
falsepositives:
  - Vulnerability scanners
level: high
license: DRL-1.1
related:
  - id: 0e1ebc5a-15d0-4bf6-8199-b2535397433a
    type: derived

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