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CVE-2026-1115 — parisneo/lollms vulnerable to stored XSS in lollms...

CRITICAL

parisneo/lollms vulnerable to stored XSS in the social feature

Published April 10, 2026Updated June 29, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published April 10, 2026 (185 days ago).
  • Last revised June 29, 2026 — 80 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update lollms to 2.2.0 or later
pip install "lollms>=2.2.0"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
lollms
pypi
1.1.10, 1.1.11, 1.1.12, 1.1.13 (+169 more)2.2.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.6 score means for each attack dimension.

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

References

Frequently Asked Questions

What is CVE-2026-1115?
parisneo/lollms vulnerable to stored XSS in the social feature This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.6/10).
How do I check if my project is affected by CVE-2026-1115?
CVE-2026-1115 affects lollms. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-1115 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.6

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-8wrq-fv5f-pfp2
PYSEC-2026-401

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