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CVE-2026-54599— Wallos: OIDC state parameter never validated — login CSRF / account takeover

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 4.9.4之前版本存在跨站请求伪造漏洞，该漏洞源于OIDC回调未验证state参数，可能导致攻击者诱骗受害者访问恶意URL，将受害者登录到攻击者的账户。

CVSS 7.5 · High EPSS 0.22% · P12

Affected Version Matrix 1

VendorProduct Version RangeStatus
ellite Wallos < 4.9.4 affected
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I. Basic Information for CVE-2026-54599

Vulnerability Information
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Vulnerability Title
Wallos: OIDC state parameter never validated — login CSRF / account takeover
Source: CVE Program / CVE List V5
Vulnerability Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, login.php generates an OIDC state nonce stored in $_SESSION['oidc_state'], but checksession.php dispatches the OIDC callback without comparing the incoming state against the session value. An attacker can trick a victim into visiting a crafted URL, causing Wallos to exchange the attacker's authorization code and log the victim into the attacker's account. This issue has been patched in version 4.9.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Miguel Ribeiro Wallos 跨站请求伪造漏洞
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 4.9.4之前版本存在跨站请求伪造漏洞，该漏洞源于OIDC回调未验证state参数，可能导致攻击者诱骗受害者访问恶意URL，将受害者登录到攻击者的账户。
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

Vendor Product Affected Versions CPE Subscribe
ellite Wallos < 4.9.4 -

II. Public POCs for CVE-2026-54599

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III. Intelligence Information for CVE-2026-54599

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Vendor Advisories for CVE-2026-54599 (1)

Vendor Pages for CVE-2026-54599 (1)

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-2026-61639 8.5 HIGH Wallos: Zip Slip path traversal in database restore writes files to webroot
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-2026-77353 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
Same vendor: ellite
Same weakness: CWE-352

V. Comments for CVE-2026-54599

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