{"id":"CVE-2025-8848","state":"PUBLISHED","title":"HTML Injection in Accept-Language Header in danny-avila/librechat","description":"A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the <html lang=\"\"> tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.","publishedAt":"2025-10-22T13:54:00.389Z","updatedAt":"2025-10-30T18:22:51.121Z","severity":{"score":4.8,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","source":"@huntr_ai"},"assigner":"@huntr_ai","products":["danny-avila danny-avila/librechat"],"affected":[{"vendor":"danny-avila","product":"danny-avila/librechat","versions":[{"version":"unspecified","status":"affected","lessThanOrEqual":"latest","versionType":"custom"}]}],"references":["https://huntr.com/bounties/a05ebc1f-882a-4adc-b178-d3cefa4b730e"],"weaknesses":["CWE-94"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/8xxx/CVE-2025-8848.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-8848","state":"PUBLISHED","datePublished":"2025-10-22T13:54:00.389Z","dateUpdated":"2025-10-30T18:22:51.121Z","assignerShortName":"@huntr_ai","assignerOrgId":"c09c270a-b464-47c1-9133-acb35b22c19a","dateReserved":"2025-08-10T18:16:29.790Z"},"containers":{"cna":{"title":"HTML Injection in Accept-Language Header in danny-avila/librechat","descriptions":[{"lang":"en","value":"A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the <html lang=\"\"> tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks."}],"affected":[{"vendor":"danny-avila","product":"danny-avila/librechat","versions":[{"version":"unspecified","status":"affected","lessThanOrEqual":"latest","versionType":"custom"}]}],"references":[{"url":"https://huntr.com/bounties/a05ebc1f-882a-4adc-b178-d3cefa4b730e"}],"metrics":[{"cvssV3_0":{"version":"3.0","attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","baseScore":4.8,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","type":"CWE","lang":"en","description":"CWE-94 Improper Control of Generation of Code"}]}],"providerMetadata":{"shortName":"@huntr_ai","orgId":"c09c270a-b464-47c1-9133-acb35b22c19a","dateUpdated":"2025-10-22T13:54:00.389Z"},"source":{"advisory":"a05ebc1f-882a-4adc-b178-d3cefa4b730e","discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-30T18:22:29.814728Z","id":"CVE-2025-8848","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-30T18:22:51.121Z"}}]}}}