CVE-2026-30921

Published: Mar 10, 2026 Last Modified: Mar 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.20, OneUptime Synthetic Monitors allow low-privileged project users to submit custom Playwright code that is executed on the oneuptime-probe service. In the current implementation, this untrusted code is run inside Node's vm and is given live host Playwright objects such as browser and page. This creates a distinct server-side RCE primitive: the attacker does not need the classic this.constructor.constructor(...) sandbox escape. Instead, the attacker can directly use the injected Playwright browser object to reach browser.browserType().launch(...) and spawn an arbitrary executable on the probe host/container. This vulnerability is fixed in 10.0.20.

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
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 7 Days)

749

Exposed Dangerous Method or Function

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control Other
Potential Impacts:
Gain Privileges Or Assume Identity Read Application Data Modify Application Data Execute Unauthorized Code Or Commands Other
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Low
View CWE Details
Application

Oneuptime by Hackerbay

Product Information
Vendor Hackerbay
Product Oneuptime
Version Range Affected
To 10.0.20 (exclusive)
cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/OneUptime/oneuptime/security/advisories/…
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-4j36-39gm-8vq8