CVE-2026-36239Public exploitNetwork attack vector

Authenticated PHP code execution via decoded sitecopyright

Published May 26, 2026 · Updated May 26, 2026

Code injection in PbootCMS 3.2.11 allows remote authenticated users to execute PHP code through the site configuration interface. The decode_string() routine applies stripcslashes() and htmlspecialchars_decode() to the sitecopyright value, restoring encoded PHP before direct template output. Administrative access is required, and execution occurs when a frontend page renders the affected template tag after the cache is cleared.

CVSS severity4.3
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Code injection in PbootCMS 3.2.11 allows remote authenticated users to execute PHP code through the site configuration interface. The decode_string() routine applies stripcslashes() and htmlspecialchars_decode() to the sitecopyright value, restoring encoded PHP before direct template output. Administrative access is required, and execution occurs when a frontend page renders the affected template tag after the cache is cleared.

The record

CVE
CVE-2026-36239
Published
May 26, 2026
Updated
May 26, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3CISA ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059Command and Scripting Interpreter

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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