What is CVE-2020-12256?

CVE-2020-12256 is a medium-severity vulnerability in Rconfig, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-18.

How severe is CVE-2020-12256?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2020-12256 known to be exploited?

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

XSS in Rconfig

CVE-2020-12256

rConfig 3.9.4 is vulnerable to reflected XSS. The devicemgmnt.php file improperly validates user input. An attacker can exploit this by crafting arbitrary JavaScript in the deviceId GET parameter to devicemgmnt.php.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.958 (99.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Rconfig — versions 3.9.4
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-12256?: CVE-2020-12256 is a medium-severity vulnerability in Rconfig, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-18.
How severe is CVE-2020-12256?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2020-12256 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.