Bludit <= 3.16.2 Stored XSS in Post Content
Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-27742
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 16:56 UTC · Revision 1
Source evidence
Bludit <= 3.16.2 Stored XSS in Post Content
core-osv · Original sourcePublished 23 Feb 2026, 21:58 UTC
Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.
osv:CVE-2026-27742
Complete source record
{
"id": "deaba2d4ac11438b807aa6b6631ffec8c22a56fd71af5060c30bbc1355c30b07",
"url": "https://osv.dev/vulnerability/CVE-2026-27742",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Bludit <= 3.16.2 Stored XSS in Post Content",
"summary": "Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.",
"evidence": "osv:CVE-2026-27742",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-27742",
"aliases": [
"CVE-2026-27742"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/bludit/bludit",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "3c02c864989aad0f3065faf296f99baeb1dc16ad"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "3.16.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:bludit:bludit:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.16.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"3.16.0",
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"3.14.1",
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"2.3.1",
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"0.6.1",
"0.6-beta2",
"0.6-beta1",
"0.5",
"0.4-beta1",
"0.2",
"0.2-beta1",
"0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27742.json"
}
}
],
"modified": "2026-10-28T02:30:30.785312160Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27742.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-27742",
"https://www.vulncheck.com/advisories/bludit-stored-xss-in-post-content",
"https://github.com/bludit/bludit/issues/1579",
"https://github.com/bludit/bludit"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27742.json"
}
},
"related_cves": [
{
"value": "CVE-2026-27742",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 497615,
"published_at": "2026-02-23T21:58:56.535+00:00"
}