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CVE-2026-1115

Stored XSS in parisneo/lollms

Published: Apr 10, 2026Updated: Apr 16, 2026 Sources: CVE List NVD BDUCWE-79
NVD MITRE
9.6CVSSCRITICAL
EPSS Score
0.4%
Top 67.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-79

Affected Products

lollmslollms
On-prem
AI / ML / llm-serving-inference
parisneo/lollmsparisneoAI / ML / llm-serving-inference
LoLLMsСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
lollmsoss-projectAI / ML
parisneooss-projectAI / MLaka lollms-webui, lollms-web ui, lollms
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Apr 10, 2026
Last Updated
Apr 16, 2026

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