CVE-2023-5099Network attack vector

Authenticated file inclusion via shortcode source

Published Oct 31, 2023 · Updated Apr 8, 2026

Local File Inclusion in HTML filter and csv-file search 2.7 and earlier allows remote authenticated users to execute PHP via the csvsearch src attribute. The plugin passes the shortcode src value into file-include processing without restricting paths, allowing contributor-level users to include arbitrary server files and execute PHP contained in uploaded files. Exploitation requires an authenticated WordPress account with contributor or higher permissions and a reachable shortcode-rendering page; impacts include sensitive-data disclosure, access-control bypass, and server-side code execution.

CVSS severity8.8
High
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local File Inclusion in HTML filter and csv-file search 2.7 and earlier allows remote authenticated users to execute PHP via the csvsearch src attribute. The plugin passes the shortcode src value into file-include processing without restricting paths, allowing contributor-level users to include arbitrary server files and execute PHP contained in uploaded files. Exploitation requires an authenticated WordPress account with contributor or higher permissions and a reachable shortcode-rendering page; impacts include sensitive-data disclosure, access-control bypass, and server-side code execution.

The record

CVE
CVE-2023-5099
Published
Oct 31, 2023
Updated
Apr 8, 2026
Vendor
Jonas Hjalmarsson
Product
HTML filter and csv-file search
Classifications
CWE-98, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 31, 2023CVE 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 <=2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jonas Hjalmarsson · HTML filter and csv-file searchversion=0 <=2.7

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-98Improper Control of Filename for Include/Require Statement in PHP Program
T1190Exploit Public-Facing Application

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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