CVE-2023-22853Network attack vector

Authenticated PHP code execution via unsafe eval

Published Jan 14, 2023 · Updated Apr 7, 2025

Code injection in StructLib::structure_to_webhelp() in Tiki before 24.1 allows remote authenticated users to execute arbitrary PHP code. The method passes user-controlled wiki-page content to eval() in lib/structures/structlib.php, causing that content to be interpreted as PHP. Exploitation requires feature_create_webhelp to be enabled and an account permitted to create a wiki page; injected code runs in the Tiki server context.

CVSS severity8.8
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in StructLib::structure_to_webhelp() in Tiki before 24.1 allows remote authenticated users to execute arbitrary PHP code. The method passes user-controlled wiki-page content to eval() in lib/structures/structlib.php, causing that content to be interpreted as PHP. Exploitation requires feature_create_webhelp to be enabled and an account permitted to create a wiki page; injected code runs in the Tiki server context.

The record

CVE
CVE-2023-22853
Published
Jan 14, 2023
Updated
Apr 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS: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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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