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TI-2025-29087 Aliases CVE-2025-46346GHSA-59x8-cvxh-3mm4

YesWiki Vulnerable to Stored XSS in Comments

Priority HIGH 67CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, a stored cross-site scripting (XSS) vulnerability was discovered in the application’s comments feature. This issue allows a malicious actor to inject JavaScript payloads that are stored and later executed in the browser of any user viewing the affected comment. The XSS occurs because the application fails to properly sanitize or encode user input submitted to the comments. Notably, the application sanitizes or does not allow execution of `<script>` tags, but does not account for payloads obfuscated using JavaScript block comments like `/* JavaScriptPayload */`. This issue has been patched in version 4.5.4.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00357 29th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed yeswiki (YesWiki): 4.5.4yeswiki/yeswiki (Packagist): 4.5.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
YesWikiyeswikibefore 4.5.44.5.4Patch availableCNA
—yeswiki/yeswiki (Packagist)before 4.5.44.5.4Patch availableGHSA-59x8-cvxh-3mm4
  • yeswiki VendorYesWiki Affected before 4.5.4 Fixed in 4.5.4 Patch available CNA
  • yeswiki/yeswiki (Packagist) Vendor— Affected before 4.5.4 Fixed in 4.5.4 Patch available GHSA-59x8-cvxh-3mm4

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*before 4.5.4VulnerableYesWiki
  • cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:* Versions before 4.5.4 Vulnerable ·YesWiki

Remediation

  • Fix · CNA yeswiki (YesWiki) Fixed in 4.5.4
  • Fix · GHSA-59x8-cvxh-3mm4 yeswiki/yeswiki (Packagist) Fixed in 4.5.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-46346
  2. 2026-10-03 Alias added: GHSA-59x8-cvxh-3mm4

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2025-29089 YesWiki Vulnerable to Unauthenticated Site Backup Creation and Download CVSS 3.1CRITICAL 10.0
  • TI-2024-34399 Use of a Broken or Risky Cryptographic Algorithm in YesWiki CVSS 3.1CRITICAL 9.9
  • TI-2025-22392 Path Traversal allowing arbitrary read of files in Yeswiki CVSS 3.1HIGH 8.6
  • TI-2025-17784 YesWiki Vulnerable to Unauthenticated DOM Based XSS CVSS 3.1HIGH 7.6
  • TI-2025-29090 YesWiki Vulnerable to Unauthenticated Reflected Cross-site Scripting CVSS 3.1HIGH 7.6
  • TI-2025-17786 YesWiki vulnerable to authenticated arbitrary file deletion CVSS 3.1HIGH 7.1
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences