CVE-2026-72708
Deferred Deferred - Pending Action

SPIP Blind SQL Injection via Sitemap Parameter

Publication date: 2026-09-11

Last updated on: 2026-09-15

Assigner: VulnCheck

Description
SPIP before 4.4.18 contains an unauthenticated blind SQL injection vulnerability in the SQL escaping layer that allows unauthenticated attackers to inject arbitrary SQL by supplying a crafted annee parameter value matching a word character followed by an open parenthesis, which bypasses escaping for date-type columns across MySQL, SQLite, and PostgreSQL backends. Attackers can exploit the always-present sitemap.xml.html template's annee criterion to embed unescaped time-based or boolean payloads into database queries, enabling extraction of arbitrary database content including the alea_ephemere secret used to sign SPIP action nonces.

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Meta Information

Published
2026-09-11
Last Modified
2026-09-15
Generated
2026-10-02
AI Q&A
2026-09-11
EPSS Evaluated
2026-10-01
NVD
CVE-2026-72708
EUVD
EUVD-2026-76154

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
spip spip to 4.4.18 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This is an unauthenticated blind SQL injection vulnerability in SPIP versions before 4.4.18. It occurs in the public sitemap endpoint due to improper escaping in the MySQL escaper function spip_mysql_cite() when handling date-type columns with specific input patterns. Attackers can inject SQL via the annee parameter in squelettes-dist/sitemap.xml.html to perform time-based or boolean-based blind SQL injection.

Detection Guidance

To detect this vulnerability, check if your SPIP instance is running a version before 4.4.18. You can verify the version by examining the SPIP installation files or accessing the admin interface. Additionally, monitor network traffic for requests to the sitemap endpoint with the annee parameter containing suspicious payloads like time-based SQLi tests.

Impact Analysis

An attacker could exploit this to extract sensitive database content, including the alea_ephemere secret used for signing action nonces. This could lead to unauthorized data access, manipulation, or further compromise of the SPIP application and its underlying database.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. Organizations using vulnerable SPIP versions may face compliance breaches, legal penalties, and reputational damage.

Mitigation Strategies

Immediately upgrade SPIP to version 4.4.18 or later. If upgrading is not possible, restrict access to the sitemap endpoint by blocking requests to squelettes-dist/sitemap.xml.html or implementing WAF rules to filter malicious annee parameter values.

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