CVE-2025-6380Network attack vector

Unauthenticated account takeover via attachment-only callback authorization

Published Jul 24, 2025 · Updated Jul 24, 2025

Missing authorization in ONLYOFFICE Docs 1.1.0 through 2.2.0 allows remote attackers to log in as arbitrary WordPress users through a REST callback. The oo.callback permission handler decrypts an attachment ID and accepts any existing attachment post without checking requester identity or capabilities. No authentication is required, and successful requests grant the chosen user's WordPress access and privileges.

CVSS severity9.8
Critical
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in ONLYOFFICE Docs 1.1.0 through 2.2.0 allows remote attackers to log in as arbitrary WordPress users through a REST callback. The oo.callback permission handler decrypts an attachment ID and accepts any existing attachment post without checking requester identity or capabilities. No authentication is required, and successful requests grant the chosen user's WordPress access and privileges.

The record

CVE
CVE-2025-6380
Published
Jul 24, 2025
Updated
Jul 24, 2025
Vendor
ONLYOFFICE
Product
ONLYOFFICE Docs
Classifications
CWE-862, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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?

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

  1. Affected versionversion=1.1.0 <=2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ONLYOFFICE · ONLYOFFICE Docsversion=1.1.0 <=2.2.0

Published CVSS scores

9.8WordfenceCVSS: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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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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