MISP core - Stored XSS in MISP template (old engine) element attribute type
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in misp allows Stored XSS. This issue affects MISP before 2.5.37. A stored cross-site scripting vulnerability exists in the template element attribute handling logic. The application accepted arbitrary values for the TemplateElementAttribute type and category fields without validating them against the known MISP attribute type and category definitions. An attacker with permission to create or modify template element attributes could store a crafted type value. This affects the old templating (not more accessible in 2.5.37) engine from MISP which will be removed in 2.5.38
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-8080
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 19:10 UTC · Revision 1
Source evidence
MISP core - Stored XSS in MISP template (old engine) element attribute type
core-osv · Original sourcePublished 7 May 2026, 12:07 UTC
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in misp allows Stored XSS. This issue affects MISP before 2.5.37. A stored cross-site scripting vulnerability exists in the template element attribute handling logic. The application accepted arbitrary values for the TemplateElementAttribute type and category fields without validating them against the known MISP attribute type and category definitions. An attacker with permission to create or modify template element attributes could store a crafted type value. This affects the old templating (not more accessible in 2.5.37) engine from MISP which will be removed in 2.5.38
osv:CVE-2026-8080
Complete source record
{
"id": "799d473aad658ee1bb75192bd3a5f53af808379b36b2f21c50a4116e8c784a80",
"url": "https://osv.dev/vulnerability/CVE-2026-8080",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "MISP core - Stored XSS in MISP template (old engine) element attribute type",
"summary": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in misp allows Stored XSS. This issue affects MISP before 2.5.37. A stored cross-site scripting vulnerability exists in the template element attribute handling logic. The application accepted arbitrary values for the TemplateElementAttribute type and category fields without validating them against the known MISP attribute type and category definitions. An attacker with permission to create or modify template element attributes could store a crafted type value. This affects the old templating (not more accessible in 2.5.37) engine from MISP which will be removed in 2.5.38",
"evidence": "osv:CVE-2026-8080",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-8080",
"aliases": [
"CVE-2026-8080"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Green"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/misp/misp",
"type": "GIT",
"events": [
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"introduced": "0"
},
{
"fixed": "be735cf3e9e61c81e8122b52ef70970b084dc872"
},
{
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}
],
"database_specific": {
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"cpe": "cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*",
"range": [
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{
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"source": "CPE_RANGE"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8080.json"
}
}
],
"modified": "2026-10-28T02:30:38.812287259Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8080.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-8080",
"https://github.com/MISP/MISP/commit/62824e5ca0056d01b195f70466ea0d382cca06d0"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "CIRCL",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8080.json"
}
},
"related_cves": [
{
"value": "CVE-2026-8080",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 506024,
"published_at": "2026-05-07T12:07:59.273+00:00"
}