CVE-2025-1556
Published: 22 February 2025
Summary
CVE-2025-1556 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Westboy Cicadascms. Its CVSS base score is 5.1 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2025-1556 is a problematic vulnerability discovered in westboy CicadasCMS version 1.0, affecting unknown processing of the /system file within the Template Management component. The core issue involves deserialization of untrusted data, mapped to CWE-20 (Improper Input Validation), CWE-502 (Deserialization of Untrusted Data), and NVD-CWE-Other. Published on 2025-02-22, it carries a CVSS v3.1 base score of 4.7 (AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L), indicating medium severity.
A remote attacker with high privileges can exploit this vulnerability over the network with low complexity and no user interaction required. By manipulating inputs to the affected component, the attacker triggers deserialization, potentially achieving low-level impacts on confidentiality, integrity, and availability without scope changes.
Advisories detailing the issue are available via VulDB entries (ctiid.296507, id.296507, submit.499520) and a GitHub proof-of-concept at https://github.com/FightingLzn9/vul/blob/main/CicadasCMS(2).md. The exploit has been publicly disclosed and may be used by attackers. No specific patch or mitigation details are provided in the CVE description.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-4433
Vulnerability details
A vulnerability, which was classified as problematic, has been found in westboy CicadasCMS 1.0. This issue affects some unknown processing of the file /system of the component Template Management. The manipulation leads to deserialization. The attack may be initiated remotely.…
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The exploit has been disclosed to the public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Deserialization vulnerability in Template Management (/system) enables exploitation of public-facing web application (T1190) and server-side template injection for remote code execution (T1221), as indicated by advisories describing SSTI leading to arbitrary command execution.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates CWE-20 and CWE-502 by validating inputs to the Template Management /system processing to prevent deserialization of untrusted data.
Requires timely remediation of known flaws like CVE-2025-1556 through patching or workarounds to eliminate the deserialization vulnerability.
Enforces least privilege to limit high-privilege (PR:H) access to the vulnerable Template Management component, reducing exploitation opportunities.