CVE-2025-9429: A security vulnerability has been detected in mtons mblog up to 3.5.0

Q: How do I fix CVE-2025-9429?

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

Q: Is CVE-2025-9429 being exploited?

CVE-2025-9429 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-2025-9429 affect?

CVE-2025-9429 affects mblog. Severity is low (CVSS 3.5). 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 scrip

Q: How urgent is CVE-2025-9429?

Priority 22/100. Public exploit reference

Routine

LOW 3.5UPGRADE

CVE-2025-9429 is a low-severity flaw (CVSS 3.5) affecting mblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
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 00:15 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-2025-9429?

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

Is CVE-2025-9429 being exploited?

CVE-2025-9429 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-2025-9429 affect?

CVE-2025-9429 affects mblog. Severity is low (CVSS 3.5). 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 scrip

How urgent is CVE-2025-9429?

Priority 22/100. 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-2025-9431 MEDIUM 4.3 UPGRADE A flaw 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

References

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