Description
ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the checkValidHtmlText() function within Security.php that fails to properly sanitize user input by only detecting specific patterns while returning unsanitized strings without output encoding. Attackers can inject malicious payloads that bypass the filter using alternative syntax such as img tags with event handlers, which are stored and executed in the browsers of users viewing the affected content.
Published: 2026-04-27
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored XSS
Action: Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 28 Apr 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Projeqtor
Projeqtor projeqtor
Vendors & Products Projeqtor
Projeqtor projeqtor

Mon, 27 Apr 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 27 Apr 2026 15:30:00 +0000

Type Values Removed Values Added
Description ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the checkValidHtmlText() function within Security.php that fails to properly sanitize user input by only detecting specific patterns while returning unsanitized strings without output encoding. Attackers can inject malicious payloads that bypass the filter using alternative syntax such as img tags with event handlers, which are stored and executed in the browsers of users viewing the affected content.
Title ProjeQtor < 12.4.4 Stored XSS via checkValidHtmlText()
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, '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'}


Subscriptions

Projeqtor Projeqtor
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-14T02:09:50.261Z

Reserved: 2026-04-20T16:07:47.311Z

Link: CVE-2026-41466

cve-icon Vulnrichment

Updated: 2026-04-27T15:47:04.986Z

cve-icon NVD

Status : Deferred

Published: 2026-04-27T16:16:45.937

Modified: 2026-04-27T18:35:53.583

Link: CVE-2026-41466

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T13:15:31Z

Weaknesses