CVE Explorer
CVE-2026-28509
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 4.8.7.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"LangBot","vendor":"langbot-app","versions":[{"status":"affected","version":"< 4.8.7"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:c2008084b12103d5451704c1b29e035b58db807174140068df7b8590774a4ca0 · sha256:9aca5fb7cc7b3e63… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:c2008084b12103d5451704c1b29e035b58db807174140068df7b8590774a4ca0 · sha256:9aca5fb7cc7b3e63… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:c2008084b12103d5451704c1b29e035b58db807174140068df7b8590774a4ca0 · sha256:9aca5fb7cc7b3e63… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/langbot-app/LangBot/commit/614621ab7b84fe50da3c6137705cde5a99429866","tags":["x_refsource_MISC"],"url":"https://github.com/langbot-app/LangBot/commit/614621ab7b84fe50da3c6137705cde5a99429866"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c2008084b12103d5451704c1b29e035b58db807174140068df7b8590774a4ca0 · sha256:9aca5fb7cc7b3e63… · /containers/cna/references/1
{"name":"https://github.com/langbot-app/LangBot/security/advisories/GHSA-w8gq-g4pc-xh3h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langbot-app/LangBot/security/advisories/GHSA-w8gq-g4pc-xh3h"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c2008084b12103d5451704c1b29e035b58db807174140068df7b8590774a4ca0 · sha256:9aca5fb7cc7b3e63… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.