CVE-2021-24620
Published: 13 September 2021
Summary
CVE-2021-24620 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Simple-E-Commerce-Shopping-Cart Project Simple-E-Commerce-Shopping-Cart. Its CVSS base score is 8.8 (High).
Operationally, ranked at the 42.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-11532
Vulnerability details
The WordPress Simple Ecommerce Shopping Cart Plugin- Sell products through Paypal plugin through 2.2.5 does not check for the uploaded Downloadable Digital product file, allowing any file, such as PHP to be uploaded by an administrator. Furthermore, as there is…
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no CSRF in place, attackers could also make a logged admin upload a malicious PHP file, which would lead to RCE
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Awareness training educates users on avoiding untrusted links and actions that can be exploited via CSRF.
Requiring user re-entry of credentials for sensitive actions prevents automated forgery of requests without active user participation.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Security testing regimens explicitly include checks for missing or ineffective anti-CSRF protections in web applications.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.
Detects anomalous request patterns consistent with cross-site request forgery.