CVE-2026-15941Public exploitNetwork attack vector

Authenticated SQL injection via unparameterized taxonomy query

Published Aug 5, 2026 · Updated Aug 5, 2026

SQL injection in Relevanssi 4.27.1 and earlier and Relevanssi Premium 2.30.2 and earlier allows remote authenticated users to read database data. The Admin Search AJAX handler parses its URL-encoded args parameter into WP_Query data, then interpolates a text-sanitized taxonomy value into a term-taxonomy SQL lookup without parameterization. Contributor-level edit_posts capability is required; time-based blind queries disclose database contents without reported write or service-interruption impact.

CVSS severity6.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Relevanssi 4.27.1 and earlier and Relevanssi Premium 2.30.2 and earlier allows remote authenticated users to read database data. The Admin Search AJAX handler parses its URL-encoded args parameter into WP_Query data, then interpolates a text-sanitized taxonomy value into a term-taxonomy SQL lookup without parameterization. Contributor-level edit_posts capability is required; time-based blind queries disclose database contents without reported write or service-interruption impact.

The record

CVE
CVE-2026-15941
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
eurodata comesio solutions GmbH
Product
Relevanssi
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 <=4.27.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

eurodata comesio solutions GmbH · Relevanssiversion=0 <=4.27.1
eurodata comesio solutions GmbH · Relevanssi Premiumversion=0 <=2.30.2

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
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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