CVE-2026-1115CRITICAL 9.6EPSS p32.1%

CVE-2026-1115CVE-2026-1115

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.

Scoring

CVSS 3.09.6 (CRITICAL)
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS0.40% probability of exploitation · percentile 32.1% · 2026-06-19T12:03:05Z
Published2026-04-10
Last modified2026-04-16

Underlying weaknesses· 1

CWE-79

References

  1. https://github.com/parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a
  2. https://huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa
  3. https://huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')cwe-790%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.