CVE-2025-9431: A flaw has been found in mtons mblog up to 3.5.0

Q: How do I fix CVE-2025-9431?

mblog: upgrade to newer than 3.5.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-9431 being exploited?

CVE-2025-9431 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-9431 affect?

CVE-2025-9431 affects mblog. Severity is medium (CVSS 4.3). 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 an

Q: How urgent is CVE-2025-9431?

Priority 28/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2025-9431 is a medium-severity flaw (CVSS 4.3) affecting mblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-08-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: mtons

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-26 01:15 UTCPublished CVE record published
2026-06-17 10:08 UTCUpdated Record last modified

mtons mblog UPGRADE

Affected: <= 3.5.0

Fixed in: newer than 3.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mblog || rpm -q mblog || mblog --version

2. UPGRADE to newer than 3.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mblog

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mblog

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-9431?

mblog: upgrade to newer than 3.5.0. Exact commands for each OS are on this page.

Is CVE-2025-9431 being exploited?

CVE-2025-9431 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-9431 affect?

CVE-2025-9431 affects mblog. Severity is medium (CVSS 4.3). 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 an

How urgent is CVE-2025-9431?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2025-9647 MEDIUM 4.3 UPGRADE A weakness has been identified in mtons mblog up to 3.5.0
CVE-2025-9433 MEDIUM 4.3 UPGRADE A vulnerability was found in mtons mblog up to 3.5.0
CVE-2025-9432 MEDIUM 4.3 UPGRADE A vulnerability has been found in mtons mblog up to 3.5.0
CVE-2025-9430 LOW 2.4 UPGRADE A vulnerability was detected in mtons mblog up to 3.5.0
CVE-2025-9429 LOW 3.5 UPGRADE A security vulnerability has been detected in mtons mblog up to 3.5.0

References

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