CVE-2025-9429 mtons mblog Post submit cross site scripting
Attackers can inject malicious scripts via post content or title fields in mtons mblog, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-9429?
CVE-2025-9429 is a medium-severity cross-site scripting vulnerability in mtons mblog, published on 25 Aug 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A security vulnerability has been detected in mtons mblog up to 3.5.0. This vulnerability affects unknown code of the file /post/submit of the component Post Handler. The manipulation of the argument content/title/ leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2025-9429?
It affects 1 product.
Products include Mtons Mblog.
How do I fix CVE-2025-9429?
No fix has been published for CVE-2025-9429 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-2025-9429 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9429 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-vfm9-5q9f-cgx3.