CVE-2026-1115

Stored XSS in parisneo/lollms

Published Apr 10, 2026 CVSS 3.0 · 9.6 Critical EPSS 1.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-8wrq-fv5f-pfp2 parisneo/lollms vulnerable to stored XSS in the social feature
History
Type Values Removed Values Added
First Time appeared Lollms
Lollms lollms
CPEs cpe:2.3:a:lollms:lollms:*:*:*:*:*:*:*:*
Vendors & Products Lollms
Lollms lollms
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Parisneo
Parisneo lollms
Vendors & Products Parisneo
Parisneo lollms
Type Values Removed Values Added
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.
Title Stored XSS in parisneo/lollms
Weaknesses CWE-79
References
Metrics cvssV3_0

{'score': 9.6, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
@huntr_ai
Published
Updated
Apr 10, 2026, 1:01 PM
Reserved
Jan 17, 2026, 2:34 PM
Status
Analyzed
Published
Apr 10, 2026, 7:16 AM
Modified
Oct 26, 2026, 10:10 PM