CVE-2026-125358
What it is
Universal-modder before commit e88f6876745427321eb755ebc98276063a962d8a contains a missing WebSocket Origin validation vulnerability in the HostLink class of its passthrough example mods that allows remote attackers to execute Minecraft commands. Any web page open in the player's browser can connect cross-site to the unauthenticated loopback WebSocket and send cmd messages that WorldBridge.command() runs with operator authority.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data tampering, service disruption.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: not scored yet.
- Severity: 7.2 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Weakness
- CWE-1385
- Record status
- Received
Attack profile CVSS 4.0 · 7.2
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- Passive
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-125358.md and follow it. Check whether this project is affected by CVE-2026-125358. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/rehan-remade/universal-modder/commit/e88f6876745427321eb755ebc98276063a962d8a
- https://github.com/rehan-remade/universal-modder/security/advisories/GHSA-wjf6-3h6v-4gq9
References
- https://github.com/rehan-remade/universal-modder/blob/edf45f6a26cb047886d9d7bcba392c328fc3d317/examples/minecraft-gta5-passthrough/mc/src/client/java/dev/rehan/passthrough/client/HostLink.java#L54-L72
- https://github.com/rehan-remade/universal-modder/commit/e88f6876745427321eb755ebc98276063a962d8a
- https://github.com/rehan-remade/universal-modder/security/advisories/GHSA-wjf6-3h6v-4gq9
- https://www.vulncheck.com/advisories/universal-modder-before-e88f687-cross-site-websocket-command-execution-via-hostlink