RCE in Mtons Mblog
CVE-2025-9431
A flaw has been found in mtons mblog up to 3.5.0. Impacted is an unknown function of the file /search. This manipulation of the argument kw causes cross site scripting. The attack can be initiated remotely. The exploit has been published and may be used.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Mtons Mblog — versions 3.0, 3.1, 3.2
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/mtons/mblog/issues/ICPMML (issue-tracking, Exploit, exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-9431?
- CVE-2025-9431 is a medium-severity vulnerability in Mtons Mblog, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2025-08-26.
- How severe is CVE-2025-9431?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2025-9431 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.