Vulnerability · Published Dec 14, 2021 · Assigned by Wordfence
CVE-2021-39318H5P CSS Editor <= 1.0 Reflected Cross-Site Scripting
Medium 6.1
In plain English
A medium-severity cross-site scripting in H5P CSS Editor from H5P CSS Editor. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.8%top 43.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The H5P CSS Editor WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the h5p-css-file parameter found in the ~/h5p-css-editor.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| H5P CSS Editor | H5P CSS Editor | 1.0 – through 1.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N