What is CVE-2021-25959?

CVE-2021-25959 is a medium-severity vulnerability in Opencrx, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-09-29.

How severe is CVE-2021-25959?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Opencrx

CVE-2021-25959

In OpenCRX, versions v4.0.0 through v5.1.0 are vulnerable to reflected Cross-site Scripting (XSS), due to unsanitized parameters in the password reset functionality. This allows execution of external javascript files on any user of the openCRX instance.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-09-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Opencrx
Org.opencrx Opencrx-Core-Config — versions 4.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25959 (Tool Signature)
github.com/opencrx/opencrx/commit/14e75f95e5f56fbe7ee897bdf5d858788072e818 (Patch, Tool Signature)

Frequently asked questions

What is CVE-2021-25959?: CVE-2021-25959 is a medium-severity vulnerability in Opencrx, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-09-29.
How severe is CVE-2021-25959?: Medium severity. CVSS v3 base score is 6.1 out of 10.