CVE-2025-8227
Published: 27 July 2025
Summary
CVE-2025-8227 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Chancms Chancms. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 44.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.
Directly implements checks on information inputs to reject invalid data before processing.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.
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.
NVD Description
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…
more
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.
Deeper analysisAI
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.
Details
- CWE(s)