A vulnerability classified as critical has been found in apostrophecms apostrophe up to 3.6.0. This issue affects some unknown processing. Performing a manipulation results in os command injection.
This vulnerability was named CVE-2026-42853. The attack needs to be approached locally. There is no available exploit.
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CVE-2026-42853 | apostrophecms apostrophe up to 3.6.0 os command injection (GHSA-hcwq-x9fw-8cfq / EUVD-2026-36565)
A vulnerability classified as critical has been found in apostrophecms apostrophe up to 3.6.0. This issue affects some unknown processing. Performing a manipulation results in os command injection. This vulnerability was named…
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IoC Intelligence (1 Indikatoren)
CVE-2026-42853
CTI Threat Relationship Graph3 Knoten / 2 Relationen
IR-PLAYBOOK-VULN-REMEDIATION
MEDIUMSOC Incident Playbook: Vulnerability Remediation & Verification
1-Click Detection Engineering: Sigma & YARA Rules
SOC Readytitle: Detect Exploitation - CVE-2026-42853 | apostrophecms apostrophe up to 3.6.0 os command injection (GHSA-hcwq-x9fw-8cfq / EUVD-2026-36565)
id: a772c0b0-0128-424d-b29d-0e54e3aa8f54
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-23
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_access
- attack.t1190rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-23"
description = "YARA Signature for "
strings:
$str = "CVE-2026-42853 | apostrophecms" ascii wide
condition:
any of them
}
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