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TI-2025-29089 Aliases CVE-2025-46348GHSA-wc9g-6j9w-hr95

YesWiki Vulnerable to Unauthenticated Site Backup Creation and Download

Priority HIGH 82CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could create and download an archive without being authenticated. This could result in a malicious attacker making numerous requests to create archives and fill up the file system, or by downloading the archive which contains sensitive site information. 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 0.00665 52nd 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
Total

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-wc9g-6j9w-hr95
  • 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-wc9g-6j9w-hr95

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-wc9g-6j9w-hr95 yeswiki/yeswiki (Packagist) Fixed in 4.5.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-46348
  2. 2026-10-03 Alias added: GHSA-wc9g-6j9w-hr95
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • 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-2025-29087 YesWiki Vulnerable to Stored XSS in Comments CVSS 4.0MEDIUM 6.3
  • 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