Medium
Security advisory
An issue was discovered in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.0 before 9.0.0 Patch 16. An XSS vulnerability exists in the login component of Zimbra Web Client, in which an attacker can execute arbitrary JavaScript by adding executable JavaScript to the loginErrorCode parameter of the login url.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-35207
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:59 UTC · Revision 1
Source evidence
An issue was discovered in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.0 before 9.0.0 Patch 16. An XSS vulnerability exists in the login component of Zimbra Web Client, in which an attacker can execute arbitrary JavaScript by adding executable JavaScript to the loginErrorCode parameter of the login url.
osv:CVE-2021-35207
Complete source record
{
"id": "d84b983fc0b8dd6fe90070e1d56a5ffba5c8760bc10c341ca42eaf96132f040d",
"url": "https://osv.dev/vulnerability/CVE-2021-35207",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-35207",
"summary": "An issue was discovered in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.0 before 9.0.0 Patch 16. An XSS vulnerability exists in the login component of Zimbra Web Client, in which an attacker can execute arbitrary JavaScript by adding executable JavaScript to the loginErrorCode parameter of the login url.",
"evidence": "osv:CVE-2021-35207",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-35207",
"aliases": [
"CVE-2021-35207"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/zimbra/zm-build",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "ac6081fa002b1511e926aba37740d2b6c20f3f43"
},
{
"introduced": "ac6081fa002b1511e926aba37740d2b6c20f3f43"
},
{
"last_affected": "bcb978ccc354d99d843725886083e321759b6765"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:zimbra:collaboration:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8"
},
{
"fixed": "8.8.15"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-NA"
},
{
"last_affected": "8.8.15-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-p1"
},
{
"last_affected": "8.8.15-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-p11"
},
{
"last_affected": "8.8.15-p11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:p20:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-p20"
},
{
"last_affected": "8.8.15-p20"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-p3"
},
{
"last_affected": "8.8.15-p3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:*",
"range": [
{
"introduced": "8.8.15-p5"
},
{
"last_affected": "8.8.15-p5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0-NA"
},
{
"last_affected": "9.0.0-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0-p1"
},
{
"last_affected": "9.0.0-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0-p4"
},
{
"last_affected": "9.0.0-p4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0-p7"
},
{
"last_affected": "9.0.0-p7"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"8.8.15-NA",
"8.8.15-p1",
"8.8.15-p20",
"8.8.15-p3",
"8.8.15-p5",
"9.0.0-NA",
"9.0.0-p1",
"9.0.0-p4",
"9.0.0-p7",
"9.0.0",
"9.0.0.p7",
"9.0.0.p4",
"8.8.12",
"8.8.10",
"8.8.9.p3",
"8.8.9.p1",
"8.8.9",
"8.8.8",
"8.7.11",
"8.8.7",
"8.8.6",
"8.8.4",
"8.8.3",
"8.8.2",
"8.8.0.beta1",
"8.7.10",
"8.7.9",
"8.7.7",
"8.7.6"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-35207.json"
}
}
],
"modified": "2026-10-24T10:31:01.377662455Z",
"provider": "osv",
"references": [
"https://wiki.zimbra.com/wiki/Security_Center",
"https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23",
"https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16",
"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p17:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p18:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p19:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p21:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p22:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p10:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p11:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p12:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p13:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p14:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p15:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:*",
"cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:*"
],
"vendor_product": "zimbra:collaboration",
"extracted_events": [
{
"range": [
{
"introduced": "8.8.15-p10"
},
{
"last_affected": "8.8.15-p10"
},
{
"introduced": "8.8.15-p12"
},
{
"last_affected": "8.8.15-p12"
},
{
"introduced": "8.8.15-p13"
},
{
"last_affected": "8.8.15-p13"
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{
"introduced": "8.8.15-p14"
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{
"last_affected": "8.8.15-p14"
},
{
"introduced": "8.8.15-p15"
},
{
"last_affected": "8.8.15-p15"
},
{
"introduced": "8.8.15-p16"
},
{
"last_affected": "8.8.15-p16"
},
{
"introduced": "8.8.15-p17"
},
{
"last_affected": "8.8.15-p17"
},
{
"introduced": "8.8.15-p18"
},
{
"last_affected": "8.8.15-p18"
},
{
"introduced": "8.8.15-p19"
},
{
"last_affected": "8.8.15-p19"
},
{
"introduced": "8.8.15-p2"
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{
"last_affected": "8.8.15-p2"
},
{
"introduced": "8.8.15-p21"
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{
"last_affected": "8.8.15-p21"
},
{
"introduced": "8.8.15-p22"
},
{
"last_affected": "8.8.15-p22"
},
{
"introduced": "8.8.15-p4"
},
{
"last_affected": "8.8.15-p4"
},
{
"introduced": "8.8.15-p6"
},
{
"last_affected": "8.8.15-p6"
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{
"introduced": "8.8.15-p7"
},
{
"last_affected": "8.8.15-p7"
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{
"introduced": "8.8.15-p8"
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{
"last_affected": "8.8.15-p8"
},
{
"introduced": "8.8.15-p9"
},
{
"last_affected": "8.8.15-p9"
},
{
"introduced": "9.0.0-p10"
},
{
"last_affected": "9.0.0-p10"
},
{
"introduced": "9.0.0-p11"
},
{
"last_affected": "9.0.0-p11"
},
{
"introduced": "9.0.0-p12"
},
{
"last_affected": "9.0.0-p12"
},
{
"introduced": "9.0.0-p13"
},
{
"last_affected": "9.0.0-p13"
},
{
"introduced": "9.0.0-p14"
},
{
"last_affected": "9.0.0-p14"
},
{
"introduced": "9.0.0-p15"
},
{
"last_affected": "9.0.0-p15"
},
{
"introduced": "9.0.0-p2"
},
{
"last_affected": "9.0.0-p2"
},
{
"introduced": "9.0.0-p3"
},
{
"last_affected": "9.0.0-p3"
},
{
"introduced": "9.0.0-p5"
},
{
"last_affected": "9.0.0-p5"
},
{
"introduced": "9.0.0-p6"
},
{
"last_affected": "9.0.0-p6"
},
{
"introduced": "9.0.0-p8"
},
{
"last_affected": "9.0.0-p8"
},
{
"introduced": "9.0.0-p9"
},
{
"last_affected": "9.0.0-p9"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-35207",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439771,
"published_at": "2021-07-02T19:15:08.377+00:00"
}