CVE-2021-4330 json
Envato Elements <= 2.0.10 & Template Kit <= 1.0.13 - Authenticated (Contributor+) Arbitrary File Upload
published 3y ago modified 4mo ago also EUVD-2021-34157
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
The Envato Elements & Download and Template Kit – Import plugins for WordPress are vulnerable to arbitrary file uploads due to insufficient validation of file type upon extracting uploaded Zip files in the installFreeTemplateKit and uploadTemplateKitZipFile functions. This makes it possible for attackers with contributor-lever permissions and above to upload arbitrary files and potentially gain remote code execution in versions up to and including 1.0.13 of Template Kit – Import and versions up to and including 2.0.10 of Envato Elements & Download.
Patch / fix
Is CVE-2021-4330 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- envato Template Kit – Import
- envato Envato Elements – Photos & Elementor Templates
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&old=2617529%40envato-elements&new=2617529%40envato-elements&sfp_ema
patch
- wordfence.com /threat-intel/vulnerabilities/id/68fe17e2-d5ab-4ebd-a5c6-d65cea327abd?source=cve
-
wordfence.com
/threat-intel/vulnerabilities/id/68fe17e2-d5ab-4ebd-a5c6-d65cea327abd
third-party-advisory
Sources
- CVE List CVE-2021-4330
- NVD CVE-2021-4330
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.