CVE-2021-24236

CVE-2021-24236 is a critical-severity vulnerability in Imagements Project Imagements 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

Description

The Imagements WordPress plugin through 1.2.5 allows images to be uploaded in comments, however only checks for the Content-Type in the request to forbid dangerous files. This allows unauthenticated attackers to upload arbitrary files by using a valid image Content-Type along with a PHP filename and code, leading to RCE.

Frequently asked questions

What is CVE-2021-24236?
The Imagements WordPress plugin through 1.2.5 allows images to be uploaded in comments, however only checks for the Content-Type in the request to forbid dangerous files. This allows unauthenticated attackers to upload arbitrary files by using a valid image Content-Type along with a PHP filename and code, leading to RCE.
How severe is CVE-2021-24236?
CVE-2021-24236 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-2021-24236 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24236?
CVE-2021-24236 affects Imagements Project Imagements. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24236?
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-2021-24236 published?
CVE-2021-24236 was published on 2021-05-06 and last updated on 2026-06-17.

References

Affected products (1)

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →