High
spip — security advisory
SPIP before 4.4.18 contains a code injection vulnerability in SQLite-backed installations. The navigation menu endpoint improperly handles array-typed user input, which bypasses input sanitization and allows the value to break out of an internal quoted string context when evaluated as PHP. An authenticated attacker with at minimum editor (redacteur) privileges can submit a single crafted GET request to /ecrire/?exec=navigation to execute arbitrary OS commands in the web server process. MySQL-backed installations are not affected.
- Products
- spip
- Affected versions
- 3.0.20-1, 3.0.21-1, 3.0.21-1ubuntu1, 3.0.21-1ubuntu1+esm1, 3.1.4-3, 3.1.4-4~deb9u3build0.18.04.1, 3.1.4-4~deb9u5build0.18.04.1, 3.1.4-4~deb9u5ubuntu0.1~esm2, 3.2.11-3, 3.2.12-1, 3.2.4-1, 3.2.5-1, 3.2.7-1, 3.2.7-1ubuntu0.1, 3.2.7-1ubuntu0.1+esm2, 4.0.2-1, 4.0.4-1, 4.1.11+dfsg-1, 4.1.12+dfsg-1, 4.1.13+dfsg-1, 4.1.15+dfsg-1, 4.2.9+dfsg-2, 4.4.15+dfsg-1, 4.4.16+dfsg-1, 4.4.19+dfsg-1, 4.4.20+dfsg-1, 4.4.21+dfsg-1, 4.4.3+dfsg-1, 4.4.6+dfsg-1, 4.4.7+dfsg-1, 4.4.8+dfsg-1, 4.4.9+dfsg-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-66738
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:13 UTC · Revision 1
Source evidence
SPIP before 4.4.18 contains a code injection vulnerability in SQLite-backed installations. The navigation menu endpoint improperly handles array-typed user input, which bypasses input sanitization and allows the value to break out of an internal quoted string context when evaluated as PHP. An authenticated attacker with at minimum editor (redacteur) privileges can submit a single crafted GET request to /ecrire/?exec=navigation to execute arbitrary OS commands in the web server process. MySQL-backed installations are not affected.
osv:UBUNTU-CVE-2026-66738
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
spip
Fixed versions: Not specified
Complete source record
{
"id": "de5acebba13f1aec3f601fcbff8395ea17c604dfac2ac668c5d6fc0881779965",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-66738",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-66738",
"summary": "SPIP before 4.4.18 contains a code injection vulnerability in SQLite-backed installations. The navigation menu endpoint improperly handles array-typed user input, which bypasses input sanitization and allows the value to break out of an internal quoted string context when evaluated as PHP. An authenticated attacker with at minimum editor (redacteur) privileges can submit a single crafted GET request to /ecrire/?exec=navigation to execute arbitrary OS commands in the web server process. MySQL-backed installations are not affected.",
"evidence": "osv:UBUNTU-CVE-2026-66738",
"products": [
{
"name": {
"value": "spip",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.20-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.0.21-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.0.21-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "3.0.21-1ubuntu1+esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.4-3",
"evidence": "/affected/1/versions"
},
{
"value": "3.1.4-4~deb9u3build0.18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "3.1.4-4~deb9u5build0.18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "3.1.4-4~deb9u5ubuntu0.1~esm2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.2.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.2.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.2.7-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.2.7-1ubuntu0.1",
"evidence": "/affected/2/versions"
},
{
"value": "3.2.7-1ubuntu0.1+esm2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.2.11-3",
"evidence": "/affected/3/versions"
},
{
"value": "3.2.12-1",
"evidence": "/affected/3/versions"
},
{
"value": "4.0.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "4.0.4-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.1.11+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.12+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.13+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.15+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.2.9+dfsg-2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.9+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.15+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.16+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.19+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.20+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.21+dfsg-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "spip",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.3+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "4.4.6+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "4.4.7+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "4.4.8+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "4.4.9+dfsg-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-66738",
"aliases": [
"UBUNTU-CVE-2026-66738"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"3.0.20-1",
"3.0.21-1",
"3.0.21-1ubuntu1",
"3.0.21-1ubuntu1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "3.0.21-1ubuntu1+esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"3.1.4-3",
"3.1.4-4~deb9u3build0.18.04.1",
"3.1.4-4~deb9u5build0.18.04.1",
"3.1.4-4~deb9u5ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "3.1.4-4~deb9u5ubuntu0.1~esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"3.2.4-1",
"3.2.5-1",
"3.2.7-1",
"3.2.7-1ubuntu0.1",
"3.2.7-1ubuntu0.1+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "3.2.7-1ubuntu0.1+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"3.2.11-3",
"3.2.12-1",
"4.0.2-1",
"4.0.4-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "4.0.4-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"4.1.11+dfsg-1",
"4.1.12+dfsg-1",
"4.1.13+dfsg-1",
"4.1.15+dfsg-1",
"4.2.9+dfsg-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "4.2.9+dfsg-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"4.4.9+dfsg-1",
"4.4.15+dfsg-1",
"4.4.16+dfsg-1",
"4.4.19+dfsg-1",
"4.4.20+dfsg-1",
"4.4.21+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "4.4.21+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "spip",
"purl": "pkg:deb/ubuntu/spip?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"4.4.3+dfsg-1",
"4.4.6+dfsg-1",
"4.4.7+dfsg-1",
"4.4.8+dfsg-1",
"4.4.9+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66738.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "spip",
"binary_version": "4.4.9+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:35.226199676Z",
"provider": "osv",
"upstream": [
"CVE-2026-66738"
],
"references": [
"https://ubuntu.com/security/CVE-2026-66738",
"https://www.cve.org/CVERecord?id=CVE-2026-66738",
"https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-18.html",
"https://www.vulncheck.com/advisories/spip-code-injection-via-navigation-endpoint-on-sqlite"
]
},
"related_cves": [
{
"value": "CVE-2026-66738",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360715,
"published_at": "2026-08-10T16:19:00+00:00"
}