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CVE-2025-10758

htmly Custom Field post cross site scripting

MEDIUM
4.8
CVSS Score
Published: September 21, 2025 at 12:02 AM UTC
Updated: October 19, 2026 at 04:10 PM UTC
1 product affected across 1 vendorHtmly

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Htmly· Htmly
95%
v ≤ 3.1.03.03.1.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.325113
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.325113
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.645806
ExploitThird Party Advisory
Source: cverecord
https://www.notion.so/inmog/Reported-Vulnerability-XSS-Vulnerability-in-htmly-v3-1-0-2627752d1edd804fbd71f310bde44d11

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.8MEDIUMVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79CWE-94

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