CVE-2025-7062
Stored Cross-Site Scripting via file upload in H5P module (h5p-nodejs-library) of Lumi Education
02 Description
Stored Cross-Site Scripting via file upload in H5P module (h5p-nodejs-library) of Lumi Education
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.46% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 39.5% of scored records. A rank, not a probability.
- NVD base score
- 5.2 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-19.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-09 06:14Z1 MO AGO
- Last updated
- 2026-09-22 19:06Z1 MO AGO
- Reserved
- 2025-07-04
- Assigning CNA
- SCHUTZWERK
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.2)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L/E:P
- Weaknesses
- Data version
- 5.2
- Document digest
- 29b4920bc02df0ca40f2aecd10758e1bac749032d938fb5b5187659ea227b466
05 Affected products
06 References
07 Remediation
At the time of publication, no release fully prevents the upload and execution of files that contain JavaScript. Version 10.0.4 removes the SVG file extension from the default content allowlist, but it still identifies permitted files by their filename extension alone. An attacker can therefore upload a file with malicious JavaScript content under an allowed extension, such as XML, and have it executed. Until a complete fix is available, operators should not rely on extension-based filtering alone. Uploaded files should be validated and sanitized based on their actual content rather than their filename. For SVG uploads specifically, the library's [SVG file sanitization](https://github.com/Lumieducation/H5P-Nodejs-library/blob/v10.0.4/docs/packages/h5p-svg-sanitizer.md) can be enabled, which uses DOMPurify to remove malicious script content from uploaded files.