Stored XSS in parisneo/lollms

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Summary

CVECVE-2026-1115
StatePUBLISHED
Assigner@huntr_ai
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 07:16:20 UTC
Updated2026-04-10 13:16:43 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.0 9.6 CRITICAL from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary9.6CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
3.0CNADECLARED9.6CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Parisneo Parisneo/lollms affected unspecified 2.2.0 custom Not specified

References

ReferenceSourceLinkTags
huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa 134c704f-9b21-4f2e-91b3-4a467353bcc0 huntr.com
github.com/parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a [email protected] github.com
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