CVE-2025-8227
Published: 27 July 2025
Summary
CVE-2025-8227 is a low-severity Improper Input Validation (CWE-20) vulnerability in Chancms Chancms. Its CVSS base score is 2.1 (Low).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 35.8% of CVEs by exploit likelihood; 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-2025-8227 is a critical deserialization vulnerability in yanyutao0402 ChanCMS versions up to 3.1.2. The issue affects an unknown functionality within the /collect/getArticle file, where manipulation of the taskUrl argument triggers improper deserialization of untrusted data. This flaw is linked to CWE-20 (Improper Input Validation) and CWE-502 (Deserialization of Untrusted Data), carrying a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
Attackers can exploit this vulnerability remotely by supplying a crafted taskUrl argument. Exploitation requires low privileges (PR:L), with no need for user interaction, allowing network-accessible targets to be compromised. Successful attacks can result in low-level impacts to confidentiality, integrity, and availability, such as limited data exposure, modification, or denial of service.
Mitigation is addressed by upgrading to ChanCMS version 3.1.3, which includes the specific patch commit 33d9bb464353015aaaba84e27638ac9a3912795d. Advisory references on Gitee detail the commit, related issue ICLP81, and the V3.1.3 release tree, while VulDB entries confirm the vulnerability details and public exploit disclosure.
The exploit has been publicly disclosed and may be actively used, increasing the urgency for affected deployments to patch immediately.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-22816
Vulnerability details
A vulnerability was found in yanyutao0402 ChanCMS up to 3.1.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /collect/getArticle. The manipulation of the argument taskUrl leads to deserialization. The attack can…
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be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.3 is able to address this issue. The patch is named 33d9bb464353015aaaba84e27638ac9a3912795d. It is recommended to upgrade the affected component.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Deserialization vulnerability (CWE-502) in the public-facing web endpoint /collect/getArticle allows remote attackers to manipulate the taskUrl parameter, leading to remote code execution.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of untrusted taskUrl input before deserialization, blocking the CWE-20/CWE-502 flaw at /collect/getArticle.
Mandates prompt application of the vendor patch (v3.1.3, commit 33d9bb46) that eliminates the deserialization vulnerability.
Requires integrity verification of received data/objects prior to deserialization, limiting successful exploitation of crafted serialized payloads.