{"id":"CVE-2026-12228","title":"A stored cross-site scripting (XSS) vulnerability exists in the `POST /api/prompts/share` endpoint of parisneo/lollms (latest version)","summary":"A stored cross-site scripting (XSS) vulnerability exists in the `POST /api/prompts/share` endpoint of parisneo/lollms (latest version). The endpoint stores attacker-controlled `prompt_content` into `DBDirectMessage.content` without serve…","severity":"high","cvss":8.7,"cvssVector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","cwe":["CWE-79"],"published":"2026-07-18","updated":"2026-07-18","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-12228","references":[{"url":"https://huntr.com/bounties/25623635-5ceb-4062-8289-02089e6d97c1","label":"security@huntr.dev"}],"tags":["nvd"],"ingestedAt":"2026-07-19T08:30:40.131Z","epss":0.00334,"epssPercentile":0.24022,"slug":"CVE-2026-12228","body":"## Overview\n\nA stored cross-site scripting (XSS) vulnerability exists in the `POST /api/prompts/share` endpoint of parisneo/lollms (latest version). The endpoint stores attacker-controlled `prompt_content` into `DBDirectMessage.content` without server-side sanitization. When a victim opens the direct message (DM) thread, the message is rendered by the DM UI through `MessageContentRenderer`, which uses `v-html` to insert rendered HTML into the DOM. The frontend sanitizer, which is regex-based, fails to comprehensively sanitize attacker-controlled HTML, allowing malicious payloads to execute in the victim's browser context. This vulnerability enables any authenticated user to send a malicious prompt-share message to another user's inbox, leading to arbitrary JavaScript execution, authenticated actions as the victim, exposure of same-origin application data, and potential account takeover.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}