CVE-2025-51868Public exploitNetwork attack vector

Conversation disclosure via unchecked ownership validation

Published Jul 21, 2025 · Updated Jul 22, 2025

IDOR in Dippy v2 allows remote authenticated users to read other users' conversation histories through the conversation_history endpoint. The server accepts a caller-controlled conversation_id without verifying that the authenticated account owns or may share the requested history. A valid authorization value and brute-force enumeration of predictable eight-digit identifiers expose other users' stored conversations.

CVSS severity7.5
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Dippy v2 allows remote authenticated users to read other users' conversation histories through the conversation_history endpoint. The server accepts a caller-controlled conversation_id without verifying that the authenticated account owns or may share the requested history. A valid authorization value and brute-force enumeration of predictable eight-digit identifiers expose other users' stored conversations.

The record

CVE
CVE-2025-51868
Published
Jul 21, 2025
Updated
Jul 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1213.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2025Record 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 buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213.005Data from Information Repositories: Messaging Applications

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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