CVE-2021-23562

CVE-2021-23562 is a medium-severity vulnerability in Tiny Plupload with a CVSS 3.x base score of 4.2. 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

This affects the package plupload before 2.3.9. A file name containing JavaScript code could be uploaded and run. An attacker would need to trick a user to upload this kind of file.

Frequently asked questions

What is CVE-2021-23562?
This affects the package plupload before 2.3.9. A file name containing JavaScript code could be uploaded and run. An attacker would need to trick a user to upload this kind of file.
How severe is CVE-2021-23562?
CVE-2021-23562 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-23562 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23562?
CVE-2021-23562 affects Tiny Plupload. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23562?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23562 published?
CVE-2021-23562 was published on 2021-12-03 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 →