CVE-2026-86187Public exploitNetwork attack vector

Account takeover via predictable external-login passwords

Published Sep 5, 2026 · Updated Sep 10, 2026

Weak password generation in WWBN AVideo 29.0 and earlier allows attackers to recover external-login passwords from disclosed hashes. Three external-login paths call rand(), while createUserIfNotExists() falls back to time-based uniqid(); default hashing is unsalted and has no work factor. An external-login provider must be configured and an attacker must first obtain users.password hashes; recovered credentials authenticate through the ordinary login form.

CVSS severity7.4
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password generation in WWBN AVideo 29.0 and earlier allows attackers to recover external-login passwords from disclosed hashes. Three external-login paths call rand(), while createUserIfNotExists() falls back to time-based uniqid(); default hashing is unsalted and has no work factor. An external-login provider must be configured and an attacker must first obtain users.password hashes; recovered credentials authenticate through the ordinary login form.

The record

CVE
CVE-2026-86187
Published
Sep 5, 2026
Updated
Sep 10, 2026
Vendor
WWBN
Product
AVideo
Classifications
CWE-330, CWE-338, T1110.002
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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?

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

  1. Affected versionversion=0 <=29.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WWBN · AVideoversion=0 <=29.0

Published CVSS scores

7.4VulnCheckCVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4WWBNCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.9VulnCheckCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
T1110.002Password Cracking

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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