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    CVE-2026-27479

    Wallos is an open-source, self-hostable personal subscription tracker. Versions 4.6.0 and below contain a Server-Side Request Forgery (SSRF) vulnerability in the subscription and payment logo/icon upload functionality. The application validates the IP address of the provided URL before making the request, but allows HTTP redirects (CURLOPT_FOLLOWLOCATION = true), enabling an attacker to bypass the IP validation and access internal resources, including cloud instance metadata endpoints. The getLogoFromUrl() function validates the URL by resolving the hostname and checking if the resulting IP is in a private or reserved range using FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE. However, the subsequent cURL request is configured with CURLOPT_FOLLOWLOCATION = true and CURLOPT_MAXREDIRS = 3, which means the request will follow HTTP redirects without re-validating the destination IP. This issue has been fixed in version 4.6.1.

    Published:Feb 21, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 21, 2026
    EPSS Score:0.00038
    CVSS Score:7.7

    Affected Products

    Vendor
    Ellite
    Product
    Wallos
    Vendor
    Wallosapp
    Product
    Wallos

    Exploits

    https://github.com/ellite/Wallos/security/advisories/GHSA-fgmf-7g5v-jmjg

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-77353 (CVSS 4.6) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 5.0.0, Wallos allows a…
    CVE-2026-77352 (CVSS 4.3) — Wallos is an open-source, self-hostable personal subscription tracker. From version 2.0.0 to before version 5.…
    CVE-2026-77348 (CVSS 8.2) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 5.0.0, the fix for CVE…
    CVE-2026-77351 (CVSS 3.5) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 5.0.0, Wallos lets any…
    CVE-2026-61641 (CVSS 8.1) — Wallos is an open-source, self-hostable personal subscription tracker. From version 4.0.0 to before version 4.…
    CVE-2026-61640 (CVSS 8.5) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, Admin-configure…
    CVE-2026-61639 (CVSS 8.5) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints…
    CVE-2026-61638 (CVSS 8.2) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints…
    CVE-2026-54600 (CVSS 8.2) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, endpoints/db/im…
    CVE-2026-54599 (CVSS 7.5) — Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, login.php gener…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High