CVE-2026-40038Network attack vector

Stored script execution via unsanitized POST parameters

Published Apr 13, 2026 · Updated Apr 13, 2026

Stored cross-site scripting in Pachno 1.0.6 allows attackers to execute arbitrary HTML and script code through crafted POST parameters. Multiple controllers obtain the value, comment_body, article_content, description, and message fields through Request::getRawParameter() or Request::getParameter() without proper sanitization before storing them. The persistent payload executes when another user views the affected database-backed content, enabling actions within that user's browser session.

CVSS severity5.1
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Pachno 1.0.6 allows attackers to execute arbitrary HTML and script code through crafted POST parameters. Multiple controllers obtain the value, comment_body, article_content, description, and message fields through Request::getRawParameter() or Request::getParameter() without proper sanitization before storing them. The persistent payload executes when another user views the affected database-backed content, enabling actions within that user's browser session.

The record

CVE
CVE-2026-40038
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
Pachno
Product
Pachno
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 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=1.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Pachno · Pachnoversion=1.0.6

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
7.2VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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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