CVE-2025-9430 mtons mblog update cross site scripting
Remote attackers can inject malicious scripts via the admin options update endpoint, potentially compromising user sessions and data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-9430?
CVE-2025-9430 is a medium-severity cross-site scripting vulnerability in mtons mblog, published on 26 Aug 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A vulnerability was detected in mtons mblog up to 3.5.0. This issue affects some unknown processing of the file /admin/options/update. The manipulation of the argument input results in cross site scripting. It is possible to launch the attack remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2025-9430?
It affects 1 product.
Products include Mtons Mblog.
How do I fix CVE-2025-9430?
No fix has been published for CVE-2025-9430 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-9430 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9430 exists.
Other vulnerabilities in mtons mblog
- CVE-2024-28713 File upload in n/a
- CVE-2025-9004 mtons mblog password excessive authentication
- CVE-2025-9005 mtons mblog register information exposure
- CVE-2025-8927 mtons mblog Verification Code send_code excessive authentication
- CVE-2024-13198 langhsu Mblog Blog System login observable response discrepancy
Sources
Also known as GHSA-3q6c-gxc3-h5vx.