CVE-2024-25421Public exploitNetwork attack vector

Group-chat privilege escalation via stale room cache

Published Mar 26, 2024 · Updated Aug 7, 2024

Improper access control in Ignite Realtime Openfire before 4.8.1 allows remote attackers to inherit deleted users' group-chat privileges. LocalMUCRoomManager keeps persistent room affiliations in a nonexpiring ROOM_CACHE and does not evict a user's entry when that account is deleted. Exploitation requires account registration and reuse of a deleted member's username; inherited access exposes chat history and permits role-authorized room actions.

CVSS severity9.8
Critical
EPSS probability1.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Ignite Realtime Openfire before 4.8.1 allows remote attackers to inherit deleted users' group-chat privileges. LocalMUCRoomManager keeps persistent room affiliations in a nonexpiring ROOM_CACHE and does not evict a user's entry when that account is deleted. Exploitation requires account registration and reuse of a deleted member's username; inherited access exposes chat history and permits role-authorized room actions.

The record

CVE
CVE-2024-25421
Published
Mar 26, 2024
Updated
Aug 7, 2024
Vendor
Ignite Realtime
Product
Openfire
Classifications
CWE-250, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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=0 <=4.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ignite Realtime · Openfireversion=0 <=4.9.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

CWE-250Execution with Unnecessary Privileges
T1078Valid Accounts

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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