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VulnerabilityPublished

CVE-2026-89334: Better Messages (WordPress plugin) · Missing Authorization

Affects Better Messages (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 2 Nov 2026, 22:58 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
wordplusBetter Messages – Chat Rooms, Group Chat, Private Messages & AI Chat BotsAffected
  • <=2.15.33
Fixed in–

AI-suggested

Users should verify and change the 'only_joined_can_read' setting from its default '0' to restrict message access to joined users only. Monitor vendor advisories for updates or patches addressing this vulnerability.

Description

The Better Messages plugin for WordPress has an authorization bypass vulnerability in all versions up to and including 2.15.33. This flaw allows authenticated users with custom-level access or higher to access message transcripts, thread metadata, and user data of any chat-room thread without proper authorization. Exploitation requires the chat room setting 'only_joined_can_read' to be set to its default value of '0'.

References

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