Referer Spam
CVE-2026-27743
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
The SPIP referer_spam plugin versions prior to 1.3.0 contain an unauthenticated SQL injection vulnerability in the referer_spam_ajouter and referer_spam_supprimer action handlers. The handlers read the url parameter from a GET request and interpolate it directly into SQL LIKE clauses without input validation or parameterization. The endpoints do not enforce authorization checks and do not use SPIP action protections such as securiser_action(), allowing remote attackers to execute arbitrary SQL queries.
AnalysisAI
Unauthenticated SQL injection in SPIP referer_spam plugin before 1.3.0 via the referrer tracking functionality. PoC and patch available.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | SPIP referer_spam plugin versions prior to 1.3.0 must be installed and enabled. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 9.8, EPSS 0.15%. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Attacker sends request with SQL injection payload in the Referer header, the plugin logs it unsanitized, enabling database compromise. |
| Remediation | Update plugin to 1.3.0. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all systems running SPIP with the referer_spam plugin and identify current versions; apply vendor patch 1.3.0 or disable the plugin if patching is not immediately possible. …
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External POC / Exploit Code
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