CVE-2026-82643Public exploitNetwork attack vectorHinoki check available

Unauthenticated password guessing via unthrottled GET requests

Published Aug 30, 2026 · Updated Aug 30, 2026

Improper authentication-attempt restriction in WWBN AVideo allows remote attackers to submit unlimited credential guesses over GET. The Live plugin's preauthorize.json.php reads credentials from GET parameters and calls processPreauthorization without the rate limit used by the normal login endpoint. No account is needed to reach it; valid credentials additionally trigger uncapped two-factor emails, while response bodies do not reveal whether a guess succeeded.

CVSS severity6.9
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authentication-attempt restriction in WWBN AVideo allows remote attackers to submit unlimited credential guesses over GET. The Live plugin's preauthorize.json.php reads credentials from GET parameters and calls processPreauthorization without the rate limit used by the normal login endpoint. No account is needed to reach it; valid credentials additionally trigger uncapped two-factor emails, while response bodies do not reveal whether a guess succeeded.

The record

CVE
CVE-2026-82643
Published
Aug 30, 2026
Updated
Aug 30, 2026
Vendor
WWBN
Product
AVideo
Classifications
CWE-598, CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WWBN · AVideoAffected versions are unavailable in this record.

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
6.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-598Use of GET Request Method With Sensitive Query Strings
CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

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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