CVE-2025-10331: A vulnerability has been found in cdevroe unmark up to 1.9.3

Q: How do I fix CVE-2025-10331?

unmark: upgrade to newer than 1.9.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-10331 being exploited?

CVE-2025-10331 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-2025-10331 affect?

CVE-2025-10331 affects unmark. Severity is low (CVSS 3.5). A vulnerability has been found in cdevroe unmark up to 1.9.3. This issue affects some unknown processing of the file /application/controllers/Marks.php. Such manipulation of the argument Title leads to cross site scripting. The attack can b

Q: How urgent is CVE-2025-10331?

Priority 23/100. Public exploit reference

Routine

LOW 3.5UPGRADE

CVE-2025-10331 is a low-severity flaw (CVSS 3.5) affecting unmark. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in cdevroe unmark up to 1.9.3. This issue affects some unknown processing of the file /application/controllers/Marks.php. Such manipulation of the argument Title leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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 77%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-09-13
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: unmark

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

Am I affected?

Timeline

2025-09-13 02:15 UTCPublished CVE record published
2026-06-17 08:28 UTCUpdated Record last modified

unmark unmark UPGRADE

Affected: <= 1.9.3

Fixed in: newer than 1.9.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.9.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade unmark

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-2025-10331?

unmark: upgrade to newer than 1.9.3. Exact commands for each OS are on this page.

Is CVE-2025-10331 being exploited?

CVE-2025-10331 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-2025-10331 affect?

CVE-2025-10331 affects unmark. Severity is low (CVSS 3.5). A vulnerability has been found in cdevroe unmark up to 1.9.3. This issue affects some unknown processing of the file /application/controllers/Marks.php. Such manipulation of the argument Title leads to cross site scripting. The attack can b

How urgent is CVE-2025-10331?

Priority 23/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-10332 LOW 3.5 UPGRADE A vulnerability was found in cdevroe unmark up to 1.9.3
CVE-2025-10330 MEDIUM 4.3 UPGRADE A flaw has been found in cdevroe unmark up to 1.9.3
CVE-2025-10329 MEDIUM 6.3 UPGRADE A vulnerability was detected in cdevroe unmark up to 1.9.3
CVE-2024-41349 MEDIUM 6.1 DOWNGRADE unmark 1.9.2 is vulnerable to Cross Site Scripting (XSS) via application/views/marks/add_by_url.php.

References

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