CVE-2026-61639— Wallos: Zip Slip path traversal in database restore writes files to webroot
Quick assessment
Affected
ellite Wallos
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Miguel Ribeiro Wallos是Miguel Ribeiro个人开发者开源的一个开源个人订阅跟踪器。 Miguel Ribeiro Wallos 4.9.6之前版本存在路径遍历漏洞，该漏洞源于ZipArchive::extractTo()在解压时未验证条目名称中的../序列，可能导致管理员上传特制ZIP文件并将Webshell写入Web根目录，从而实现远程代码执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-61639
Vulnerability Information
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Vulnerability Title
Wallos: Zip Slip path traversal in database restore writes files to webroot
Source: CVE Program / CVE List V5
Vulnerability Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to webroot. Extension filter only applies to post-extraction logo copy step. This issue has been patched in version 4.9.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Miguel Ribeiro Wallos 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Miguel Ribeiro Wallos是Miguel Ribeiro个人开发者开源的一个开源个人订阅跟踪器。 Miguel Ribeiro Wallos 4.9.6之前版本存在路径遍历漏洞，该漏洞源于ZipArchive::extractTo()在解压时未验证条目名称中的../序列，可能导致管理员上传特制ZIP文件并将Webshell写入Web根目录，从而实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-61639
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-61639 (1)
Vendor Advisories for CVE-2026-61639 (1)
Vendor Pages for CVE-2026-61639 (1)
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🔗 Release v4.9.6 · ellite/Wallos · GitHub x_refsource_MISC
Same Patch Batch · ellite · 2026-08-31 · 13 CVEs total
| CVE-2026-61640 | 8.5 HIGH | Wallos: SSRF via OIDC Token/UserInfo URL Configuration |
| CVE-2026-54600 | 8.2 HIGH | Wallos: Unauthenticated database replacement via import endpoint on fresh install |
| CVE-2026-61638 | 8.2 HIGH | Wallos: SSRF via Test Email Notification - unvalidated SMTP host/port |
| CVE-2026-77348 | 8.2 HIGH | Wallos incomplete fix for CVE-2026-33407: unauthenticated httpoxy SSRF still reachable via |
| CVE-2026-61641 | 8.1 HIGH | Wallos: OIDC account takeover via email-based account linking without `email_verified` che |
| CVE-2026-54598 | 7.5 HIGH | Missing Authentication for Critical Function in wallos |
| CVE-2026-54599 | 7.5 HIGH | Wallos: OIDC state parameter never validated — login CSRF / account takeover |
| CVE-2026-77353 | 4.6 MEDIUM | Wallos: iCalendar Injection via CRLF in Subscription Name/Notes Export |
| CVE-2026-50199 | 4.3 MEDIUM | Wallos: Cross-user Fixer/API Layer credential consumption in exchange-rate refresh |
| CVE-2026-50198 | 4.3 MEDIUM | Wallos: Cross-user subscription cost inference via replacement_subscription_id |
| CVE-2026-77352 | 4.3 MEDIUM | Wallos: Authenticated SSRF via per-user SMTP notification host (low-privilege user) |
| CVE-2026-77351 | 3.5 LOW | Wallos: SSRF via Unvalidated User-Level SMTP Host in Email Notification Settings |
IV. Related Vulnerabilities
Same product: Wallos
-
CVE-2026-77353
Wallos: iCalendar Injection via CRLF in Subscription Name/No -
CVE-2026-77352
Wallos: Authenticated SSRF via per-user SMTP notification ho -
CVE-2026-77348
Wallos incomplete fix for CVE-2026-33407: unauthenticated ht -
CVE-2026-77351
Wallos: SSRF via Unvalidated User-Level SMTP Host in Email N -
CVE-2026-61641
Wallos: OIDC account takeover via email-based account linkin
Same vendor: ellite
-
CVE-2026-77353
Wallos: iCalendar Injection via CRLF in Subscription Name/No -
CVE-2026-77352
Wallos: Authenticated SSRF via per-user SMTP notification ho -
CVE-2026-77348
Wallos incomplete fix for CVE-2026-33407: unauthenticated ht -
CVE-2026-77351
Wallos: SSRF via Unvalidated User-Level SMTP Host in Email N -
CVE-2026-61641
Wallos: OIDC account takeover via email-based account linkin
Same weakness: CWE-22
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CVE-2026-115569
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Path traversal via HTTP `Content-Disposition` header in Exte -
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baserCMS: Path traversal in the BcThemeFile admin screen all -
CVE-2026-114622
baserCMS: Encoded path traversal bypass in the theme file AP -
CVE-2026-57208
Entire CLI: Path traversal in checkpoint session metadata al
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