Search
Find a vulnerability
Search criteria
2 vulnerabilities found for smallweb by kagisearch
CVE-2026-90583 (GCVE-0-2026-90583)
Vulnerability from nvd – Published: 2026-09-13 20:00 – Updated: 2026-09-15 17:58 X_Open Source
VLAI
EPSS
VEX
Title
kagisearch smallweb Query String Rendering sw.py index cross site scripting
Summary
A security flaw has been discovered in kagisearch smallweb up to 0ecb9c48edbf98dc7e934b54fbac43869e64b4cf. The affected element is the function index of the file app/sw.py of the component Query String Rendering. Performing a manipulation of the argument qs results in cross site scripting. The attack is possible to be carried out remotely. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The patch is named 00b68144e583f20a6b67e29cf01bc07f57979ffb. It is recommended to apply a patch to fix this issue. Exploitability requires a raw HTTP request carrying unencoded double-quote characters in the query string - Werkzeug's request.query_string returns the raw request-target, and ordinary browsers percent-encode " as %22, so the payload only lands via netcat/curl-style raw sockets.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:58 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403168 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403168/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90583 | third-party-advisory |
| https://vuldb.com/submit/913779 | third-party-advisory |
| https://github.com/kagisearch/smallweb/issues/854 | issue-tracking |
| https://github.com/kagisearch/smallweb/commit/00b… | patch |
| https://github.com/kagisearch/smallweb/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| kagisearch | smallweb |
Affected:
0ecb9c48edbf98dc7e934b54fbac43869e64b4cf
cpe:2.3:a:kagisearch:smallweb:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-90583",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-15T17:58:17.238128Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T17:58:22.697Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/kagisearch/smallweb/issues/854"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:kagisearch:smallweb:*:*:*:*:*:*:*:*"
],
"modules": [
"Query String Rendering"
],
"product": "smallweb",
"vendor": "kagisearch",
"versions": [
{
"status": "affected",
"version": "0ecb9c48edbf98dc7e934b54fbac43869e64b4cf"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Customeres (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security flaw has been discovered in kagisearch smallweb up to 0ecb9c48edbf98dc7e934b54fbac43869e64b4cf. The affected element is the function index of the file app/sw.py of the component Query String Rendering. Performing a manipulation of the argument qs results in cross site scripting. The attack is possible to be carried out remotely. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The patch is named 00b68144e583f20a6b67e29cf01bc07f57979ffb. It is recommended to apply a patch to fix this issue. Exploitability requires a raw HTTP request carrying unencoded double-quote characters in the query string - Werkzeug\u0027s request.query_string returns the raw request-target, and ordinary browsers percent-encode \" as %22, so the payload only lands via netcat/curl-style raw sockets."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross Site Scripting",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Code Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-13T20:00:09.772Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-403168 | kagisearch smallweb Query String Rendering sw.py index cross site scripting",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/403168"
},
{
"name": "VDB-403168 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/403168/cti"
},
{
"name": "CVE-2026-90583 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-90583"
},
{
"name": "Submit #913779 | kagisearch smallweb main Cross Site Scripting",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/913779"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/kagisearch/smallweb/issues/854"
},
{
"tags": [
"patch"
],
"url": "https://github.com/kagisearch/smallweb/commit/00b68144e583f20a6b67e29cf01bc07f57979ffb"
},
{
"tags": [
"product"
],
"url": "https://github.com/kagisearch/smallweb/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-09-12T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-09-12T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-09-12T19:41:44.000Z",
"value": "VulDB entry last update"
}
],
"title": "kagisearch smallweb Query String Rendering sw.py index cross site scripting",
"x_generator": [
"VulDB PVTS v202609"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-90583",
"datePublished": "2026-09-13T20:00:09.772Z",
"dateReserved": "2026-09-12T17:36:40.109Z",
"dateUpdated": "2026-09-15T17:58:22.697Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-90583 (GCVE-0-2026-90583)
Vulnerability from cvelistv5 – Published: 2026-09-13 20:00 – Updated: 2026-09-15 17:58 X_Open Source
VLAI
EPSS
VEX
Title
kagisearch smallweb Query String Rendering sw.py index cross site scripting
Summary
A security flaw has been discovered in kagisearch smallweb up to 0ecb9c48edbf98dc7e934b54fbac43869e64b4cf. The affected element is the function index of the file app/sw.py of the component Query String Rendering. Performing a manipulation of the argument qs results in cross site scripting. The attack is possible to be carried out remotely. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The patch is named 00b68144e583f20a6b67e29cf01bc07f57979ffb. It is recommended to apply a patch to fix this issue. Exploitability requires a raw HTTP request carrying unencoded double-quote characters in the query string - Werkzeug's request.query_string returns the raw request-target, and ordinary browsers percent-encode " as %22, so the payload only lands via netcat/curl-style raw sockets.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:58 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403168 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403168/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90583 | third-party-advisory |
| https://vuldb.com/submit/913779 | third-party-advisory |
| https://github.com/kagisearch/smallweb/issues/854 | issue-tracking |
| https://github.com/kagisearch/smallweb/commit/00b… | patch |
| https://github.com/kagisearch/smallweb/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| kagisearch | smallweb |
Affected:
0ecb9c48edbf98dc7e934b54fbac43869e64b4cf
cpe:2.3:a:kagisearch:smallweb:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-90583",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-15T17:58:17.238128Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T17:58:22.697Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/kagisearch/smallweb/issues/854"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:kagisearch:smallweb:*:*:*:*:*:*:*:*"
],
"modules": [
"Query String Rendering"
],
"product": "smallweb",
"vendor": "kagisearch",
"versions": [
{
"status": "affected",
"version": "0ecb9c48edbf98dc7e934b54fbac43869e64b4cf"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Customeres (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security flaw has been discovered in kagisearch smallweb up to 0ecb9c48edbf98dc7e934b54fbac43869e64b4cf. The affected element is the function index of the file app/sw.py of the component Query String Rendering. Performing a manipulation of the argument qs results in cross site scripting. The attack is possible to be carried out remotely. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The patch is named 00b68144e583f20a6b67e29cf01bc07f57979ffb. It is recommended to apply a patch to fix this issue. Exploitability requires a raw HTTP request carrying unencoded double-quote characters in the query string - Werkzeug\u0027s request.query_string returns the raw request-target, and ordinary browsers percent-encode \" as %22, so the payload only lands via netcat/curl-style raw sockets."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross Site Scripting",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Code Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-13T20:00:09.772Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-403168 | kagisearch smallweb Query String Rendering sw.py index cross site scripting",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/403168"
},
{
"name": "VDB-403168 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/403168/cti"
},
{
"name": "CVE-2026-90583 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-90583"
},
{
"name": "Submit #913779 | kagisearch smallweb main Cross Site Scripting",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/913779"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/kagisearch/smallweb/issues/854"
},
{
"tags": [
"patch"
],
"url": "https://github.com/kagisearch/smallweb/commit/00b68144e583f20a6b67e29cf01bc07f57979ffb"
},
{
"tags": [
"product"
],
"url": "https://github.com/kagisearch/smallweb/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-09-12T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-09-12T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-09-12T19:41:44.000Z",
"value": "VulDB entry last update"
}
],
"title": "kagisearch smallweb Query String Rendering sw.py index cross site scripting",
"x_generator": [
"VulDB PVTS v202609"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-90583",
"datePublished": "2026-09-13T20:00:09.772Z",
"dateReserved": "2026-09-12T17:36:40.109Z",
"dateUpdated": "2026-09-15T17:58:22.697Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}