CVE-2025-49594Network attack vector

Cross-account token creation via mis-scoped authorization check

Published Oct 6, 2025 · Updated Oct 6, 2025

Improper authorization in XWiki Contrib OAuth2 and OpenID Connect 2.17.1 through 2.18.1 allows remote attackers to create user tokens. The userapplications.vm template checks Programming rights without supplying the current user and target profile to the authorization service, so it exposes token creation on another user's profile. VIEW access to that profile is sufficient; using the token for impersonation also requires token authentication to be enabled.

CVSS severity9.2
Critical
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

Improper authorization in XWiki Contrib OAuth2 and OpenID Connect 2.17.1 through 2.18.1 allows remote attackers to create user tokens. The userapplications.vm template checks Programming rights without supplying the current user and target profile to the authorization service, so it exposes token creation on another user's profile. VIEW access to that profile is sufficient; using the token for impersonation also requires token authentication to be enabled.

The record

CVE
CVE-2025-49594
Published
Oct 6, 2025
Updated
Oct 6, 2025
Vendor
XWiki Contrib
Product
OAuth2 and OpenID Connect
Classifications
CWE-285, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 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=>= 2.17.1, < 2.18.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XWiki Contrib · OAuth2 and OpenID Connectversion=>= 2.17.1, < 2.18.2

Published CVSS scores

9.2GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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.

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-285Improper Authorization
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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