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Description

A Stored Cross-Site Scripting (XSS) vulnerability was identified in the social feature of parisneo/lollms, affecting the latest version prior to 2.2.0. The vulnerability exists in the `create_post` function within `backend/routers/social/__init__.py`, where user-provided content is directly assigned to the `DBPost` model without sanitization. This allows attackers to inject and store malicious JavaScript, which is executed in the browsers of users viewing the Home Feed, including administrators. This can lead to account takeover, session hijacking, and wormable attacks. The issue is resolved in version 2.2.0.

PUBLISHED Reserved 2026-01-17 | Published 2026-04-10 | Updated 2026-04-10 | Assigner @huntr_ai




CRITICAL: 9.6CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Any version before 2.2.0
affected

References

huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa exploit

huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa

github.com/...ommit/9767b882dbc893c388a286856beeaead69b8292a

cve.org (CVE-2026-1115)

nvd.nist.gov (CVE-2026-1115)

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