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CVE-2025-8848

🗓️ 22 Oct 2025 13:54:00Reported by @huntr_aiType 
cve
 cve
🔗 web.nvd.nist.gov👁 55 Views🌐 WEB

CVE-2025-8848 allows HTML injection via Accept-Language header in LibreChat 0.7.9, risking cross site scripting.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
huntr
Huntr
Possible HTML Injection in Accept-Language header
24 Jul 202513:53
–huntr
bdu_fstec
BDU FSTEC
LibreChat HTTP Request Handler XSS
1 Jun 202600:00
–bdu_fstec
circl
Circl
CVE-2025-8848
22 Oct 202515:14
–circl
cnnvd
CNNVD
LibreChat code injection vulnerability
22 Oct 202500:00
–cnnvd
cvelist
Cvelist
CVE-2025-8848 HTML Injection in Accept-Language Header in danny-avila/librechat
22 Oct 202513:54
–cvelist
euvd
EUVD
EUVD-2025-35577
22 Oct 202515:31
–euvd
kittysploit
KittySploit
LibreChat <= 0.7.9 - HTML Injection via Accept-Language Header Detection
28 Jul 202611:27
–kittysploit
mend
Mend
CVE-2025-8848
22 Oct 202513:54
–mend
nuclei
Nuclei
LibreChat <= 0.7.9 - HTML Injection via Accept-Language Header
30 Oct 202602:04
–nuclei
nvd
NVD
CVE-2025-8848
22 Oct 202514:15
–nvd
Rows per page
NVD
Node
[
  {
    "vendor": "danny-avila",
    "product": "danny-avila/librechat",
    "versions": [
      {
        "version": "unspecified",
        "status": "affected",
        "versionType": "custom",
        "lessThanOrEqual": "latest"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
Accept-Languageheader/HTML injection via the Accept-Language header, allowing arbitrary HTML to be injected into the <html lang=""> tag of the response.CWE-79, CWE-94

Data

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08 Oct 2026 11:10Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.4
CVSS 34.8
EPSS0.00453
SSVC
55