CVE-2026-1115

Stored XSS in parisneo/lollms

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.

Affected

parisneo · parisneo/lollms

CVSS v3.0 HUNTR

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

EPSS

1.26% chance of exploitation in the next 30 days, 69th percentile

Nuclei

high · CWE-79

Published

2026-04-10

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-1115.yaml

Security advisories

• https://huntr.com/bounties/099aa4fe-7165-4337-889c-3fb4f1aa71aa
• advisories/GHSA-8wrq-fv5f-pfp2
• parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a

References

• CVE Record
• NVD entry