getmaxun Authentication Endpoint auth.ts router.get improper authorization

published 2025-12-27 10 mo ago modified 2026-10-07 33 d ago also EUVD-2025-205474

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

A weakness has been identified in getmaxun maxun up to 0.0.28. The affected element is the function router.get of the file server/src/routes/auth.ts of the component Authentication Endpoint. Executing manipulation can lead to improper authorization. The attack can be executed remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 10 mo ago (2025-12-29)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gist.github.com https://gist.github.com/H2u8s/1a0bdb19d5c8c8f4dc72cb49ffe9a22b referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

getmaxun maxun

Classification

Weakness

CWE-285 Improper Authorization
CWE-266 Incorrect Privilege Assignment
CWE-639 Authorization Bypass Through User-Controlled Key

References

gist.github.com /H2u8s/1a0bdb19d5c8c8f4dc72cb49ffe9a22b
exploit
vuldb.com /?id.338477
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.338477
signature, permissions-required, vdb-entry
vuldb.com /?submit.710268
third-party-advisory, vdb-entry

Sources

CVE List CVE-2025-15106
NVD CVE-2025-15106

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary