Description
YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in the filtertags action, which echoes attacker-controlled token values without output encoding. Anonymous attackers can inject markup via action-attribute parameters that bypasses the allow_raw_html gate, executing JavaScript for every page viewer.
Published: 2026-10-25
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Mon, 26 Oct 2026 18:30:00 +0100

Type Values Removed Values Added
Metrics ssvc

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


Sun, 25 Oct 2026 14:45:00 +0100

Type Values Removed Values Added
Description YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in the filtertags action, which echoes attacker-controlled token values without output encoding. Anonymous attackers can inject markup via action-attribute parameters that bypasses the allow_raw_html gate, executing JavaScript for every page viewer.
Title YesWiki before 4.7.0 Stored XSS via filtertags Action Parameters
First Time appeared Yeswiki
Yeswiki yeswiki
Weaknesses CWE-79
CPEs cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*
Vendors & Products Yeswiki
Yeswiki yeswiki
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-26T16:41:41.933Z

Reserved: 2026-10-25T12:27:58.644Z

Link: CVE-2026-116203

cve-icon Vulnrichment

Updated: 2026-10-26T15:43:14.307Z

cve-icon NVD

Status : Deferred

Published: 2026-10-25T14:17:01.187

Modified: 2026-10-26T17:17:23.910

Link: CVE-2026-116203

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-25T18:45:15Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')