What is CVE-2021-26247?

CVE-2021-26247 is a medium-severity vulnerability in Cacti, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-19.

How severe is CVE-2021-26247?

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

Is CVE-2021-26247 known to be exploited?

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

XSS in Cacti

CVE-2021-26247

As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.071 (93.6th percentile) — read the EPSS interpretation.

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.

Affected products

Cacti — versions 0.8.7g
N/a Cacti — versions 0.8.7g

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26247?: CVE-2021-26247 is a medium-severity vulnerability in Cacti, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-19.
How severe is CVE-2021-26247?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-26247 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.