TI-2025-09849 Aliases CVE-2025-10758 GHSA-gpv9-9jfp-gcwv

htmly Custom Field post cross site scripting

MEDIUM 55CWE-79Published 2025-09-21 · Updated 2025-09-22

Key facts

Attack vector: Network
Privileges required: High
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.

Summary

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 it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00304 23rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	htmly	3.0; 3.1.0	—	No fix listed	CNA

htmly Vendor— Affected 3.0; 3.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:htmly:htmly::::::::	up to 3.1.0	Vulnerable	Htmly

cpe:2.3:a:htmly:htmly:*:*:*:*:*:*:*:* Versions up to 3.1.0 Vulnerable ·Htmly

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-10758
2026-10-03 Alias added: GHSA-gpv9-9jfp-gcwv

References

Exploit 1

https://www.notion.so/inmog/Reported-Vulnerability-XSS-Vulnerability-in-htmly-v3-1-0-2627752d1edd804fbd71f310bde44d11

TI-2021-12819 Directory Traversal vulnerability in htmly before 2.8.1 allows remote attackers to… CVSS 3.1HIGH 8.1
TI-2024-22617 htmly v2.9.6 was discovered to contain an arbitrary file deletion vulnerability via the… CVSS 3.1MEDIUM 6.5
TI-2022-00982 htmly Edit Profile Module cross site scripting CVSS 3.1MEDIUM 5.4
TI-2021-14843 In htmly version 2.8.1, is vulnerable to an Arbitrary File Deletion on the local host… CVSS 3.1CRITICAL 9.1
TI-2021-17388 htmly v2.8.1 was discovered to contain an arbitrary file deletion vulnerability via the… CVSS 3.1HIGH 8.1
TI-2020-14668 An arbitrary file deletion vulnerability was discovered on htmly v2.7.5 which allows… CVSS 3.1MEDIUM 6.5

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences