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    CVE-2025-52666

    Improper neutralisation of format characters in the settings of Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes an administrator user to disable the admin user console due to a fatal PHP error.

    Published:Nov 20, 2025
    Last Modified:Dec 2, 2025
    EPS:Nov 20, 2025
    EPSS Score:0.00051
    CVSS Score:2.7

    Affected Products

    Vendor
    Revive
    Product
    Adserver
    Vendor
    Revive-adserver
    Product
    Revive Adserver

    Exploits

    https://hackerone.com/reports/3399218https://hackerone.com/reports/3399218

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-135 Format String Injection
    CAPEC-67 String Format Overflow in syslog()

    Related CVEs

    CVE-2026-50743 (CVSS 5.4) — A CSRF vulnerability exists in the `zone-include.php` script in Revive Adserver 6.0.7. Linking and unlinking b…
    CVE-2026-50745 (CVSS 6.1) — A missing sanitisation vulnerability exists with user input in the stats-video.php script. The way URLs to thi…
    CVE-2026-50740 (CVSS 5.4) — A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.…
    CVE-2026-50742 (CVSS 5.4) — A stored XSS vulnerabilities exists in the `maintenance-acl-check.php` and `maintenance-banners-check.php` too…
    CVE-2026-50741 (CVSS 8.8) — Bypass to the fix for CVE-2026-34916. Variants of such vectors have been also reported by phucrio and offsetmd…
    CVE-2026-50739 (CVSS 4.3) — A bypass for CVE‑2026‑34913 exists with proper ownership validation that had not been applied to the reverse o…
    CVE-2026-50744 (CVSS 4.3) — A bypass to the admin‑only restriction of the XML‑RPC API in Revive Adserver 6.0.7. The API response for the o…
    CVE-2026-34913 (CVSS 4.3) — A missing access control check when linking trackers to campaigns through the campaign-trackers.php script of …
    CVE-2026-34917 (CVSS 4.3) — Low‑privileged session IDs generated for the web admin console could be reused in the XML‑RPC API, whose authe…
    CVE-2026-44956 (CVSS 0) — Low‑privileged users could use their Full Name as a vector for a stored XSS attack. The name is included in sy…

    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