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CVE-2026-28509: Improper Neutralization of Input During Web Page Generation

🗓️ 06 Mar 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 2 Views

LangBot is a global IM bot platform designed for LLMs. Prior to version 4.8.7, LangBot’s web UI renders user-supplied raw HTML using rehypeRaw, which can lead to a cross-site scripting (XSS) vulnerability. This issue has been patched in version 4....

Related
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
LangBot 跨站脚本漏洞
6 Mar 202600:00
cnnvd
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CVE
CVE-2026-28509
6 Mar 202604:16
cve
cvelist
Cvelist
CVE-2026-28509 LangBot has a Cross Site Scripting(XSS) Vulnerability
6 Mar 202604:16
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euvd
EUVD
EUVD-2026-9985
6 Mar 202604:16
euvd
nvd
NVD
CVE-2026-28509
6 Mar 202605:16
nvd
ptsecurity
Positive Technologies
PT-2026-23641
6 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-28509
7 Mar 202607:59
redhatcve
vulnrichment
Vulnrichment
CVE-2026-28509 LangBot has a Cross Site Scripting(XSS) Vulnerability
6 Mar 202604:16
vulnrichment

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16 Mar 2026 00:00Current
CVSS 3.15.4 - 6.3
EPSS0.00187
SSVC
2