CVE-2026-26223Network attack vector

Cross-site scripting via unsandboxed private-area iframes

Published Feb 19, 2026 · Updated Feb 19, 2026

Cross-site scripting in SPIP 4.4.0 through 4.4.7 allows remote authenticated users to execute scripts through private-area iframe content. Private-area rendering passes malicious iframe elements without escaping them or adding a sandbox attribute, so embedded scripts run in a viewer's browser. An attacker needs content access and a user to view the affected back-office page; exposure is limited to browser-context data and actions.

CVSS severity5.1
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SPIP 4.4.0 through 4.4.7 allows remote authenticated users to execute scripts through private-area iframe content. Private-area rendering passes malicious iframe elements without escaping them or adding a sandbox attribute, so embedded scripts run in a viewer's browser. An attacker needs content access and a user to view the affected back-office page; exposure is limited to browser-context data and actions.

The record

CVE
CVE-2026-26223
Published
Feb 19, 2026
Updated
Feb 19, 2026
Vendor
SPIP
Product
SPIP
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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=4.4.0 <4.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SPIP · SPIPversion=4.4.0 <4.4.8

Published CVSS scores

6.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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