CVE-2023-29689Public exploitNetwork attack vector

Unauthenticated code execution via template injection

Published Aug 4, 2023 · Updated Oct 17, 2024

Server-side template injection in PyroCMS 3.9 allows remote attackers to execute arbitrary code by sending crafted commands. Public records do not disclose the affected endpoint, template field, or code path that evaluates attacker-controlled template syntax. No authentication or user interaction is required, and successful exploitation runs attacker-chosen code on the server.

CVSS severity9.8
Critical
EPSS probability53.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in PyroCMS 3.9 allows remote attackers to execute arbitrary code by sending crafted commands. Public records do not disclose the affected endpoint, template field, or code path that evaluates attacker-controlled template syntax. No authentication or user interaction is required, and successful exploitation runs attacker-chosen code on the server.

The record

CVE
CVE-2023-29689
Published
Aug 4, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2024Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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