High
Security advisory
An issue was discovered in ext/standard/link_win32.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before 7.1.20, and 7.2.x before 7.2.8. The linkinfo function on Windows doesn't implement the open_basedir check. This could be abused to find files on paths outside of the allowed directories.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-15132
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:27 UTC · Revision 1
Source evidence
An issue was discovered in ext/standard/link_win32.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before 7.1.20, and 7.2.x before 7.2.8. The linkinfo function on Windows doesn't implement the open_basedir check. This could be abused to find files on paths outside of the allowed directories.
osv:CVE-2018-15132
Complete source record
{
"id": "8384781680d31d6d793646e3ddf48645873044f79550d93d5fd6da6f7bf390bb",
"url": "https://osv.dev/vulnerability/CVE-2018-15132",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-15132",
"summary": "An issue was discovered in ext/standard/link_win32.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before 7.1.20, and 7.2.x before 7.2.8. The linkinfo function on Windows doesn't implement the open_basedir check. This could be abused to find files on paths outside of the allowed directories.",
"evidence": "osv:CVE-2018-15132",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-15132",
"aliases": [
"CVE-2018-15132"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/php/php-src",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "ea179bc44506ae1a4d5bb90502e962f43a902071"
},
{
"introduced": "60fffd296abce5fc071f3c173c25a2696cf683c6"
},
{
"fixed": "36d3d6c97c7d38a4d21438b5efa20f0b309518dd"
},
{
"introduced": "0221e9f827632942225586687a33cfd554860d5e"
},
{
"fixed": "1ceec3e87fa898ae09eb2d67353713f5bc0202bc"
},
{
"introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
},
{
"fixed": "e32dc9aab87e888eefa7461dd71023d8274bb82d"
},
{
"fixed": "f151e048ed27f6f4eef729f3310d053ab5da71d4"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.6.37"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.31"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.1.0"
},
{
"fixed": "7.1.20"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.2.0"
},
{
"fixed": "7.2.8"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "f151e048ed27f6f4eef729f3310d053ab5da71d4"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"POST_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_EREG_MYSQL_REMOVALS",
"PRE_PHP7_REMOVALS",
"POST_PHP7_REMOVALS",
"POST_AST_MERGE",
"PRE_AST_MERGE",
"POST_64BIT_BRANCH_MERGE",
"PRE_64BIT_BRANCH_MERGE",
"POST_PHPNG_MERGE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15132.json",
"vanir_signatures": [
{
"id": "CVE-2018-15132-168c6b48",
"digest": {
"length": 336,
"function_hash": "220839560800956806208306563125284300441"
},
"source": "https://github.com/php/php-src/commit/f151e048ed27f6f4eef729f3310d053ab5da71d4",
"target": {
"file": "ext/standard/link_win32.c",
"function": "PHP_FUNCTION"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2018-15132-dcccf7e0",
"digest": {
"threshold": 0.9,
"line_hashes": [
"212981070074641104509450091836034142668",
"88395583671409793582864696691747015255",
"135003533747648975021546284778785516302",
"35499557418267422634095220243727042900",
"117851673981305499478844129398245467257",
"305333203988229800397156101482248605558",
"81910444167263063639751966488804618110",
"74540981037737713416730411259175941424",
"40995403751221392183520592881069357352",
"6280604222098253175767719674684668033",
"301255860765288804387653980432627650299",
"288880281421390955004434485443976198059"
]
},
"source": "https://github.com/php/php-src/commit/f151e048ed27f6f4eef729f3310d053ab5da71d4",
"target": {
"file": "ext/standard/link_win32.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:35:29Z"
}
}
],
"modified": "2026-10-20T13:35:29.123278835Z",
"provider": "osv",
"references": [
"https://security.netapp.com/advisory/ntap-20181107-0003/",
"https://www.tenable.com/security/tns-2018-12",
"https://github.com/php/php-src/commit/f151e048ed27f6f4eef729f3310d053ab5da71d4",
"https://bugs.php.net/bug.php?id=76459"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-15132",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387846,
"published_at": "2018-08-07T15:29:00.873+00:00"
}