CVE-2025-4396Public exploitNetwork attack vector

Database disclosure via unescaped taxonomy query parameters

Published May 13, 2025 · Updated Apr 8, 2026

Time-based SQL injection in Relevanssi 4.24.4 and earlier and Relevanssi Premium 2.27.5 and earlier allows remote attackers to read database data. The search-query builders in lib/search.php and lib/search-tax-query.php concatenate cats and tags values into SQL without adequate escaping or prepared placeholders. No authentication or user interaction is required; time-delay predicates provide an oracle for extracting sensitive database contents.

CVSS severity7.5
High
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Time-based SQL injection in Relevanssi 4.24.4 and earlier and Relevanssi Premium 2.27.5 and earlier allows remote attackers to read database data. The search-query builders in lib/search.php and lib/search-tax-query.php concatenate cats and tags values into SQL without adequate escaping or prepared placeholders. No authentication or user interaction is required; time-delay predicates provide an oracle for extracting sensitive database contents.

The record

CVE
CVE-2025-4396
Published
May 13, 2025
Updated
Apr 8, 2026
Vendor
eurodata comesio solutions GmbH
Product
Relevanssi
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 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 <=4.24.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

eurodata comesio solutions GmbH · Relevanssiversion=0 <=4.24.4
eurodata comesio solutions GmbH · Relevanssi Premiumversion=0 <=2.27.5

Published CVSS scores

7.5WordfenceCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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