What is CVE-2021-24856?

CVE-2021-24856 is a medium-severity vulnerability in Tammersoft Shared Files, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-11-17.

How severe is CVE-2021-24856?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-24856 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Tammersoft Shared Files

CVE-2021-24856

The Shared Files WordPress plugin before 1.6.61 does not sanitise and escape the Download Counter Text settings, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (47.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Tammersoft Shared_files
Unknown Shared Files – Easy Download Manager And File Sharing Plugin With Frontend Upload — versions 1.6.61

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-24856?: CVE-2021-24856 is a medium-severity vulnerability in Tammersoft Shared Files, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-11-17.
How severe is CVE-2021-24856?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24856 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.