CVE-2025-5190Network attack vector

Subscriber-to-Administrator takeover via trusted cookie

Published May 30, 2025 · Updated Apr 8, 2026

Authentication bypass in Ulrich Sossou Browse As 0.2 and earlier allows remote authenticated users to assume any WordPress account. IS_BA_Browse_As::notice treats the is_ba_original_user_COOKIEHASH cookie as a trusted account identifier despite an incorrect authentication check. Subscriber-level access and knowledge of a target user ID are required, allowing takeover of an administrator account.

CVSS severity8.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Ulrich Sossou Browse As 0.2 and earlier allows remote authenticated users to assume any WordPress account. IS_BA_Browse_As::notice treats the is_ba_original_user_COOKIEHASH cookie as a trusted account identifier despite an incorrect authentication check. Subscriber-level access and knowledge of a target user ID are required, allowing takeover of an administrator account.

The record

CVE
CVE-2025-5190
Published
May 30, 2025
Updated
Apr 8, 2026
Vendor
Ulrich Sossou
Product
Browse As
Classifications
CWE-288, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ulrich Sossou · Browse Asversion=0 <=0.2

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1068Exploitation for Privilege Escalation

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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