What’s Vulnerable › Vulnerabilities

CVE-2026-1116: Cross-site Scripting (XSS) in parisneo/lollms

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-12 · updated 2026-10-26
• Weakness: CWE-79

Description

A Cross-site Scripting (XSS) vulnerability was identified in the `from_dict` method of the `AppLollmsMessage` class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the `content` field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.

Affected products

• parisneo/lollms: through 2.1.0

References

• https://github.com/parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a
• https://huntr.com/bounties/d3d076a7-2a51-4e07-8d0e-91e28e76788e

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