How severe is CVE-2021-24493?

CVE-2021-24493 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-24493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24493?

CVE-2021-24493 affects Ingenesis Shopp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24493?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-24493 published?

CVE-2021-24493 was published on 2021-09-13 and last updated on 2026-06-17.

CVE-2021-24493

CVE-2021-24493 is a critical-severity vulnerability in Ingenesis Shopp with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Ingenesis Shopp
Published: 2021-09-13
Last modified: 2026-06-17

Description

The shopp_upload_file AJAX action of the Shopp WordPress plugin through 1.4, available to both unauthenticated and authenticated user does not have any security measure in place to prevent upload of malicious files, such as PHP, allowing unauthenticated users to upload arbitrary files and leading to RCE

Frequently asked questions

What is CVE-2021-24493?: The shopp_upload_file AJAX action of the Shopp WordPress plugin through 1.4, available to both unauthenticated and authenticated user does not have any security measure in place to prevent upload of malicious files, such as PHP, allowing unauthenticated users to upload arbitrary files and leading to RCE
How severe is CVE-2021-24493?: CVE-2021-24493 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-24493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24493?: CVE-2021-24493 affects Ingenesis Shopp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-24493 published?: CVE-2021-24493 was published on 2021-09-13 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/dcc7be04-550b-427a-a14f-a2365d96a00e

Affected products (1)

cpe:2.3:a:ingenesis:shopp:*:*:*:*:*:wordpress:*:*

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