YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction() that allows any authenticated user to inject arbitrary SQL via the {idreaction} and {id} URL path parameters. The parameters are concatenated directly into a SQL LIKE clause without escaping or parameterization. This issue has been patched in version 4.6.6.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-4pf7-cc4r-g63h YesWiki has Authenticated SQL Injection via ReactionManager
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/YesWiki/yeswiki/commit/90ca54fb518e1c43a1ead6e4f5bf9f0389789841 cve-icon cve-icon
https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6 cve-icon cve-icon
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4pf7-cc4r-g63h cve-icon cve-icon
History

Sat, 05 Sep 2026 00:00:00 +0000

Type Values Removed Values Added
Description YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction() that allows any authenticated user to inject arbitrary SQL via the {idreaction} and {id} URL path parameters. The parameters are concatenated directly into a SQL LIKE clause without escaping or parameterization. This issue has been patched in version 4.6.6.
Title YesWiki Authenticated SQL Injection in ReactionManager
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-04T23:51:35.523Z

Reserved: 2026-06-08T17:13:43.065Z

Link: CVE-2026-52775

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-05T00:17:20.520

Modified: 2026-09-05T00:17:20.520

Link: CVE-2026-52775

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-05T01:30:17Z

Weaknesses