CVE-2024-48270Public exploitNetwork attack vector

Account access via reusable login CAPTCHA

Published Nov 1, 2024 · Updated Nov 4, 2024

Authentication-control weakness in Felix Luo oasys 1.1 allows remote attackers to obtain account access through repeated password guesses. LoginsControler.loginCheck validates the session CAPTCHA but does not invalidate or rotate it, so one solved challenge authorizes repeated password attempts. No prior authentication or user interaction is required, but attackers still need a valid session CAPTCHA and a correct account password guess.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication-control weakness in Felix Luo oasys 1.1 allows remote attackers to obtain account access through repeated password guesses. LoginsControler.loginCheck validates the session CAPTCHA but does not invalidate or rotate it, so one solved challenge authorizes repeated password attempts. No prior authentication or user interaction is required, but attackers still need a valid session CAPTCHA and a correct account password guess.

The record

CVE
CVE-2024-48270
Published
Nov 1, 2024
Updated
Nov 4, 2024
Vendor
Felix Luo
Product
oasys
Classifications
T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Felix Luo · oasysversion=1.1

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1110.001Password Guessing

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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