CVE-2021-39333 json
Hashthemes Demo Importer <= 1.1.1 Improper Access Control Allowing Content Deletion
published 2021-11-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25694
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
The Hashthemes Demo Importer Plugin <= 1.1.1 for WordPress contained several AJAX functions which relied on a nonce which was visible to all logged-in users for access control, allowing them to execute a function that truncated nearly all database tables and removed the contents of wp-content/uploads.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wordfence.com https://www.wordfence.com/blog/2021/10/site-deletion-vulnerability-in-hashthemes-plugin/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:N/I:P/A:P |
Affected products
- Hashthemes Hashthemes Demo Importer
Classification
- Weakness
-
- CWE-284 Improper Access Control
- Technology feeds
References
-
wordfence.com
/blog/2021/10/site-deletion-vulnerability-in-hashthemes-plugin/
exploit, third-party-advisory
Sources
- CVE List CVE-2021-39333
- NVD CVE-2021-39333
Fencer Vulns 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.