CVE-2025-49594

CRITICALNVD 9.29.2—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.2 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version 2.18.2, anyone with VIEW access to a user profile can create a token for that user. If that XWiki instance is configured to allow token authentication, it allows authentication with any user (since users are very commonly viewable, at least to other registered users). Version 2.18.2 contains a patch. As a workaround, disable token access.

CVSS v3
9.2
EG Score
9.2(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity92% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
41.9%
KEV
Not listed

Published

October 6, 2025

Last Modified

April 15, 2026

Advisory Details (5)

Auto-updated Jul 18, 2026
Patch available. Sources: github_commit, github.
generic

CVE-2025-49594: Mitigate XWiki Vulnerability - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-49594-mitigate-xwiki-vulnerability
generic

CVE-2025-49594: Detect XWiki Vulnerability - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-49594-detect-xwiki-vulnerability
generic

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https://jira.xwiki.org/browse/OIDC-240
github Patch Available

It is possible to create a token for any user with just view right · Advisory · xwiki-contrib/oidc · GitHub

https://github.com/xwiki-contrib/oidc/security/advisories/GHSA-f2hf-pfrj-vrm7
github_commit

commit d90d71717228 (xwiki-contrib/oidc)

Fix landed in xwiki-contrib/oidc commit d90d71717228 — awaiting tagged release

https://github.com/xwiki-contrib/oidc/commit/d90d717172283aaa96bb5bb44e357f910ae64adb

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.xwiki.contrib.oidc:oidc-authenticator—2.18.2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 131 total refreshes for this CVE.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 02:57 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  51. 2026-06-08 15:25 UTCEG score recompute▲ 9.20
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-49594?
CVE-2025-49594 is a critical vulnerability published on October 6, 2025. XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version 2.18.2, anyone with VIEW access to a user profile can create a token for that user. If that XWiki instance is configured to allow token authentication, it allows…
When was CVE-2025-49594 disclosed?
CVE-2025-49594 was first published in the National Vulnerability Database on October 6, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-49594 actively exploited?
CVE-2025-49594 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-49594?
CVE-2025-49594 has a CVSS v3 base score of 9.2 (NVD).
How do I remediate CVE-2025-49594?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-49594, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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