CVE-2026-1116
CVE-2026-1116 is a medium-severity vulnerability in Lollms with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-21692
- Weakness: CWE-79
- Affected product: Lollms
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-1116?
- 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.
- How severe is CVE-2026-1116?
- CVE-2026-1116 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-1116 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-1116?
- CVE-2026-1116 affects Lollms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-1116?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-1116 have an EU (EUVD) identifier?
- Yes. CVE-2026-1116 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21692.
- When was CVE-2026-1116 published?
- CVE-2026-1116 was published on 2026-04-12 and last updated on 2026-06-17.
References
- https://github.com/parisneo/lollms/commit/9767b882dbc893c388a286856beeaead69b8292a
- https://huntr.com/bounties/d3d076a7-2a51-4e07-8d0e-91e28e76788e
Affected products (1)
- cpe:2.3:a:lollms:lollms:*:*:*:*:*:*:*:*
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