How severe is CVE-2025-49149?

CVE-2025-49149 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-2025-49149 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49149?

CVE-2025-49149 affects Langgenius Dify. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-49149?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-49149 have an EU (EUVD) identifier?

Yes. CVE-2025-49149 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18567.

When was CVE-2025-49149 published?

CVE-2025-49149 was published on 2025-06-17 and last updated on 2026-06-17.

CVE-2025-49149

CVE-2025-49149 is a medium-severity vulnerability in Langgenius Dify 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)
CVSS v4: 5.3
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18567
Weakness: CWE-79
Affected product: Langgenius Dify
Published: 2025-06-17
Last modified: 2026-06-17

Description

Dify is an open-source LLM app development platform. In version 1.2.0, there is insufficient filtering of user input by web applications. Attackers can use website vulnerabilities to inject malicious script code into web pages. This may result in a cross-site scripting (XSS) attack when a user browses these web pages. At time of posting, there is no known patched version.

Frequently asked questions

What is CVE-2025-49149?: Dify is an open-source LLM app development platform. In version 1.2.0, there is insufficient filtering of user input by web applications. Attackers can use website vulnerabilities to inject malicious script code into web pages. This may result in a cross-site scripting (XSS) attack when a user browses these web pages. At time of posting, there is no known patched version.
How severe is CVE-2025-49149?: CVE-2025-49149 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-2025-49149 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49149?: CVE-2025-49149 affects Langgenius Dify. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-49149?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-49149 have an EU (EUVD) identifier?: Yes. CVE-2025-49149 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18567.
When was CVE-2025-49149 published?: CVE-2025-49149 was published on 2025-06-17 and last updated on 2026-06-17.

References

https://github.com/langgenius/dify/security/advisories/GHSA-grmh-ww4v-5cgj

Affected products (1)

cpe:2.3:a:langgenius:dify:1.2.0:*:*:*:*:node.js:*:*

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