CVE-2025-10758: A security vulnerability has been detected in htmly up to 3.1.0

Q: How do I fix CVE-2025-10758?

htmly: upgrade to newer than 3.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-10758 being exploited?

CVE-2025-10758 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-2025-10758 affect?

CVE-2025-10758 affects htmly. Severity is low (CVSS 2.4). A security vulnerability has been detected in htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross s

Q: How urgent is CVE-2025-10758?

Priority 19/100. Public exploit reference

Routine

LOW 2.4UPGRADE

CVE-2025-10758 is a low-severity flaw (CVSS 2.4) affecting htmly. 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 htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed publicly 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	2.4 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-09-21
Last modified	2026-10-19

Publisher (CNA): VulDB · Vendor: htmly

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-21 01:15 UTCPublished CVE record published
2026-10-19 16:10 UTCUpdated Record last modified

htmly htmly UPGRADE

Affected: <= 3.1.0

Fixed in: newer than 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade htmly

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-2025-10758?

htmly: upgrade to newer than 3.1.0. Exact commands for each OS are on this page.

Is CVE-2025-10758 being exploited?

CVE-2025-10758 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-2025-10758 affect?

CVE-2025-10758 affects htmly. Severity is low (CVSS 2.4). A security vulnerability has been detected in htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross s

How urgent is CVE-2025-10758?

Priority 19/100. Public exploit reference

Related CVEs

CVE-2024-34191 MEDIUM 6.5 DOWNGRADE htmly v2.9.6 was discovered to contain an arbitrary file deletion vulnerability via the delete_post() function
CVE-2024-30953 MEDIUM 6.1 DOWNGRADE A stored cross-site scripting (XSS) vulnerability in Htmly v2.9.5 allows attackers to execute arbitrary web sc

References

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