CVE-2025-1451
CVE-2025-1451 is a high-severity vulnerability in Lollms Lollms Web Ui with a CVSS 3.x base score of 7.5. 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-770.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (44th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-6815
- Weakness: CWE-770
- Affected product: Lollms Lollms Web Ui
- Published:
- Last modified:
Description
A vulnerability in parisneo/lollms-webui v13 arises from the server's handling of multipart boundaries in file uploads. The server does not limit or validate the length of the boundary or the characters appended to it, allowing an attacker to craft requests with excessively long boundaries, leading to resource exhaustion and eventual denial of service (DoS). Despite an attempted patch in commit 483431bb, which blocked hyphen characters from being appended to the multipart boundary, the fix is insufficient. The server remains vulnerable if other characters (e.g., '4', 'a') are used instead of hyphens. This allows attackers to exploit the vulnerability using different characters, causing resource exhaustion and service unavailability.
Frequently asked questions
- What is CVE-2025-1451?
- A vulnerability in parisneo/lollms-webui v13 arises from the server's handling of multipart boundaries in file uploads. The server does not limit or validate the length of the boundary or the characters appended to it, allowing an attacker to craft requests with excessively long boundaries, leading to resource exhaustion and eventual denial of service (DoS). Despite an attempted patch in commit 483431bb, which blocked hyphen characters from being appended to the multipart boundary, the fix is insufficient. The server remains vulnerable if other characters (e.g., '4', 'a') are used instead of hyphens. This allows attackers to exploit the vulnerability using different characters, causing resource exhaustion and service unavailability.
- How severe is CVE-2025-1451?
- CVE-2025-1451 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-1451 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-1451?
- CVE-2025-1451 affects Lollms Lollms Web Ui. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-1451?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-1451 have an EU (EUVD) identifier?
- Yes. CVE-2025-1451 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6815.
- When was CVE-2025-1451 published?
- CVE-2025-1451 was published on 2025-03-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:lollms:lollms_web_ui:13:*:*:*:*:*:*:*
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