CVE-2021-24212 json
WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE
published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11126
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.9%
- EPSS 7.9% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The WooCommerce Help Scout WordPress plugin before 2.9.1 (https://woocommerce.com/products/woocommerce-help-scout/) allows unauthenticated users to upload any files to the site which by default will end up in wp-content/uploads/hstmp.
Patch / fix
- woocommerce help_scout 2.9.1
Exploit prediction
7.91% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WooCommerce Help Scout - Arbitrary File Upload nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/cf9305e8-f5bc-45c3-82db-0ef00fd46129 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Unknown WooCommerce Help Scout
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
- Technology feeds
References
-
wpscan.com
/vulnerability/cf9305e8-f5bc-45c3-82db-0ef00fd46129
exploit, third-party-advisory
-
dzv365zjfbd8v.cloudfront.net
/changelogs/woocommerce-help-scout/changelog.txt
release-notes, third-party-advisory
Sources
- CVE List CVE-2021-24212
- NVD CVE-2021-24212
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.