Medium
Security advisory
The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-29556
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:54 UTC · Revision 1
Source evidence
The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)
osv:CVE-2020-29556
Complete source record
{
"id": "5edf30fb9fc4c36634fc8b4e8c01928e313f191de5752473bab42ede064c6d0b",
"url": "https://osv.dev/vulnerability/CVE-2020-29556",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-29556",
"summary": "The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)",
"evidence": "osv:CVE-2020-29556",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-29556",
"aliases": [
"CVE-2020-29556",
"GHSA-r3rg-jrjq-w4mr"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/getgrav/grav",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "916b7cfc44d4d1e153cf5752c908124abe3167ef"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:getgrav:grav_cms:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.7.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"1.7.0-rc.19",
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"1.7.0-rc.15",
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"1.7.0-rc.8",
"1.7.0-rc.7",
"1.7.0-rc.6",
"1.7.0-rc.5",
"1.7.0-rc.4",
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"1.7.0-beta.6",
"1.7.0-beta.5",
"1.7.0-beta.4",
"1.7.0-beta.3",
"1.7.0-beta.2",
"1.7.0-beta.1",
"1.6.0-rc.4",
"1.6.0-rc.3",
"1.6.0-rc.2",
"1.6.0-rc.1",
"1.6.0-beta.8",
"1.6.0-beta.7",
"1.6.0-beta.6",
"1.6.0-beta.5",
"1.6.0-beta.2",
"1.6.0-beta.1",
"1.5.0-rc.1",
"1.5.0-beta.2",
"1.5.0-beta.1",
"1.3.0-rc.5",
"1.3.0-rc.4",
"1.3.0-rc.3",
"1.3.0-rc.1",
"1.2.0-rc.3",
"1.2.0-rc.2",
"1.2.0-rc.1",
"1.1.9-rc.3",
"1.1.9-rc.2",
"1.1.9-rc.1",
"1.1.0-rc.3",
"1.1.0-rc.2",
"1.1.0-rc.1",
"1.1.0-beta.5",
"1.1.0-beta.4",
"1.1.0-beta.3",
"1.1.0-beta.2",
"1.1.0-beta.1",
"0.9.19",
"0.9.18",
"0.9.17",
"0.9.16",
"0.9.15",
"0.9.14",
"0.9.13",
"0.9.12",
"0.9.11",
"0.9.10",
"0.9.9",
"0.9.8",
"0.9.7",
"0.9.6",
"0.9.5",
"0.9.4",
"0.9.3",
"0.9.2",
"0.9.0",
"0.8.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29556.json"
}
}
],
"modified": "2026-10-24T10:30:46.169913233Z",
"provider": "osv",
"references": [
"https://blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-grav/"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
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"cpe:2.3:a:getgrav:grav_cms:1.7.0:beta2:*:*:*:*:*:*",
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"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc14:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc15:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc16:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc17:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc1:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc20:*:*:*:*:*:*",
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"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc4:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc5:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc6:*:*:*:*:*:*",
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"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc8:*:*:*:*:*:*",
"cpe:2.3:a:getgrav:grav_cms:1.7.0:rc9:*:*:*:*:*:*"
],
"vendor_product": "getgrav:grav_cms",
"extracted_events": [
{
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},
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},
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{
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},
{
"introduced": "1.7.0-rc10"
},
{
"last_affected": "1.7.0-rc10"
},
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"last_affected": "1.7.0-rc6"
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],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-29556",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 436272,
"published_at": "2021-03-15T18:15:17.317+00:00"
}