Security advisory
MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-15275
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:53 UTC · Revision 1
Source evidence
MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.
osv:CVE-2020-15275
Complete source record
{
"id": "6d2be227f80c3e006afba0c16b4e1bcdbabca9e867350c731c1c4b2934e972eb",
"url": "https://osv.dev/vulnerability/CVE-2020-15275",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-15275",
"summary": "MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.",
"evidence": "osv:CVE-2020-15275",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-15275",
"aliases": [
"CVE-2020-15275",
"GHSA-4q96-6xhq-ff43",
"PYSEC-2020-241"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/moinwiki/moin-1.9",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "bd1bf26293fd15e1246a57ebee7044beb88309af"
},
{
"fixed": "31de9139d0aabc171e94032168399b4a0b2a88a2"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:moinmo:moinmoin:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.9.11"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "31de9139d0aabc171e94032168399b4a0b2a88a2"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "bd1bf26293fd15e1246a57ebee7044beb88309af"
}
],
"source": "REFERENCES_TAG",
"original_tag": "1.9.11"
}
]
}
}
],
"versions": [
"1.9.9"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15275.json"
}
}
],
"modified": "2026-10-20T10:51:54.470327645Z",
"provider": "osv",
"references": [
"https://github.com/moinwiki/moin-1.9/releases/tag/1.9.11",
"https://github.com/moinwiki/moin-1.9/security/advisories/GHSA-4q96-6xhq-ff43",
"https://github.com/moinwiki/moin-1.9/commit/31de9139d0aabc171e94032168399b4a0b2a88a2",
"https://advisory.checkmarx.net/advisory/CX-2020-4285"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-15275",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383119,
"published_at": "2020-11-11T16:15:13.237+00:00"
}