Deserialization in Chancms
CVE-2025-8266
A vulnerability has been found in yanyutao0402 ChanCMS up to 3.1.2 and classified as critical. Affected by this vulnerability is the function getArticle of the file app/modules/cms/controller/collect.js. The manipulation of the argument targetUrl leads to deserialization. The attack can 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. It is recommended to upgrade the affected component.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.010 (62.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- Chancms
- Yanyutao0402 Chancms — versions 3.1.0, 3.1.1, 3.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- gitee.com/yanyutao0402/ChanCMS/issues/ICLP61 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- gitee.com/yanyutao0402/ChanCMS/releases/tag/V3.1.3 (Release Notes, patch)
Frequently asked questions
- What is CVE-2025-8266?
- CVE-2025-8266 is a medium-severity vulnerability in Chancms, classified under Improper Input Validation. CVSS score: 6.3/10. Published 2025-07-28.
- How severe is CVE-2025-8266?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2025-8266 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.