CVE-2026-111367

Published: Ott 16, 2026 Last Modified: Ott 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,9
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 6,5
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: low

Description

AI Translation Available

BillionMail through 4.9 contains a hard-coded cryptographic key vulnerability that allows unauthenticated attackers to forge unsubscribe and subscribe-confirm JWTs by computing the key from shipped configuration constants. Attackers can submit forged tokens to /api/unsubscribe, /api/unsubscribe_new, or /api/subscribe/confirm to deactivate any contact or force confirmed subscriptions.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0026
Percentile
0,2th
Updated

EPSS Score Trend (Last 5 Days)

1394

Use of Default Cryptographic Key

Incomplete
Common Consequences
Security Scopes Affected:
Authentication
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
View CWE Details
https://hackmd.io/@hieuPenguinnn/billionmail-unsubscribe-subscribe-jwt-determin…
https://github.com/aaPanel/BillionMail
https://github.com/aaPanel/BillionMail/blob/v4.9/core/internal/service/batch_ma…
https://github.com/aaPanel/BillionMail/blob/v4.9/core/manifest/config/config.ya…
https://hackmd.io/@hieuPenguinnn/billionmail-unsubscribe-subscribe-jwt-determin…
https://www.vulncheck.com/advisories/billionmail-through-4.9-forgeable-jwts-via…