Emlog is an open source website building system. In versions 2.6.29 and prior, tag names in emlog are not HTML-encoded when rendered in the article editor. An attacker can create a tag containing ');alert(document.domain);//. The addslashes() function does not escape HTML entities, so ' is stored as-is. When the browser renders the page, it decodes ' back to a literal single quote before evaluating the JavaScript, breaking out of the string and executing arbitrary code. At time of publication, there are no publicly known patches.
History

Wed, 09 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 04 Sep 2026 21:45:00 +0000

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

Fri, 04 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Description Emlog is an open source website building system. In versions 2.6.29 and prior, tag names in emlog are not HTML-encoded when rendered in the article editor. An attacker can create a tag containing ');alert(document.domain);//. The addslashes() function does not escape HTML entities, so ' is stored as-is. When the browser renders the page, it decodes ' back to a literal single quote before evaluating the JavaScript, breaking out of the string and executing arbitrary code. At time of publication, there are no publicly known patches.
Title Emlog: Stored XSS via Tag Name in Article Editor
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-09-04T17:47:58.822Z

Updated: 2026-09-08T17:33:14.425Z

Reserved: 2026-08-13T17:44:28.644Z

Link: CVE-2026-73848

cve-icon Vulnrichment

Updated: 2026-09-08T16:50:25.767Z

cve-icon NVD

Status : Deferred

Published: 2026-09-04T18:17:55.953

Modified: 2026-09-08T21:05:26.920

Link: CVE-2026-73848

cve-icon Redhat

No data.