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CVE-2026-54608— MythicalDash: Unauthenticated payment bypass in Stripe success-redirect endpoint allows arbitrary free credit top-up

Quick assessment

Affected
MythicalLTD MythicalDash
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.

MythicalDash 是一个 Pterodactyl 客户端管理面板。在 3.5.4-aurora 及更早版本中，后端文件 中的 会在 Stripe 结账成功之前，先在 表中创建一条状态为“待处理”（pending）的记录，并将支付码嵌入到成功重定向链接中。而 接口在接收该支付码时，既没有构建 Stripe 会话（Session），也没有校验用户所有权，更没有获取 Stripe Checkout 会话来确认 为“已支付”且 与预期扣款金额一致。 因此，任何普通已认证用户都可以请求攻击者指定的金币数量，然后放弃或

CVSS 7.1 · High EPSS 0.20% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
MythicalLTD MythicalDash <= 3.5.4-aurora affected
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I. Basic Information for CVE-2026-54608

Vulnerability Information
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Vulnerability Title
MythicalDash: Unauthenticated payment bypass in Stripe success-redirect endpoint allows arbitrary free credit top-up
Source: CVE Program / CVE List V5
Vulnerability Description
MythicalDash is a Pterodactyl client area. In 3.5.4-aurora and earlier, GET /api/stripe/process in backend/app/Api/System/Gateways/Stripe.php creates a pending row in mythicaldash_stripe_payments before Stripe checkout succeeds and embeds the payment code in the success redirect, while GET /api/stripe/processed accepts that code without constructing a Session, checking ownership, or retrieving the Stripe Checkout Session to require payment_status to be paid and amount_total to match the expected charge. An ordinary authenticated user can request an attacker-selected coins amount, abandon or fail payment, and submit the pending code directly to the unauthenticated processed endpoint. StripeDB::isPending() then permits User::addCreditsAtomic() to grant the unpaid amount and mark the row processed even though Stripe has not confirmed payment. This permits arbitrary free virtual-currency top-ups and direct financial loss through consumption of hosting resources. No fixed version is available as of this review.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MythicalLTD MythicalDash <= 3.5.4-aurora -

II. Public POCs for CVE-2026-54608

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III. Intelligence Information for CVE-2026-54608

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Patches & Fixes for CVE-2026-54608 (1)

Vendor Advisories for CVE-2026-54608 (1)

IV. Related Vulnerabilities

Same vendor: MythicalLTD
Same weakness: CWE-345