CVE-2026-21431 - Vulnerability Details - OpenCVE

Emlog is an open source website building system. Version 2.5.23 has a stored cross-site scripting vulnerability in the `Resource media library ` function while publishing an article. As of time of publication, no known patched versions are available.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Emlog	Emlog

No data.

No data.

References

Link	Providers
https://github.com/emlog/emlog/security/advisories/GHSA-9vc2-crhr-248x

History

Tue, 06 Jan 2026 00:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 05 Jan 2026 10:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Emlog Emlog emlog
Vendors & Products		Emlog Emlog emlog

Fri, 02 Jan 2026 19:00:00 +0000

Type	Values Removed	Values Added
Description		Emlog is an open source website building system. Version 2.5.23 has a stored cross-site scripting vulnerability in the `Resource media library ` function while publishing an article. As of time of publication, no known patched versions are available.
Title		Emlog vulnerable to stored Cross-site Scripting via image name
Weaknesses		CWE-79
References		https://github.com/emlog/emlog/security/advisories/GHSA-9vc2-crhr-248x
Metrics		cvssV4_0 `{'score': 2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-01-02T18:49:03.202Z

Updated: 2026-01-05T20:38:04.182Z

Reserved: 2025-12-29T03:00:29.275Z

Link: CVE-2026-21431

Vulnrichment

Updated: 2026-01-05T20:30:24.613Z

NVD

Status : Awaiting Analysis

Published: 2026-01-02T19:15:47.857

Modified: 2026-01-08T18:09:49.800

Link: CVE-2026-21431

Redhat

No data.

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